4.1.1. Articles
The extracted data includes 752 publications, 8282 citing articles, 12911 citations, an average citation of 17.7 per publication, and an H-Index of 52. The network of articles referenced by the 752 articles analyses highlights that the major set of connected items that meet the threshold applied contains 578 documents. The overall strength of the bibliographic coupling links to other documents was calculated for each of the 578 documents. The documents with the strongest links were chosen. The top bibliographic coupling of the various authors is shown in Table 1. It displays the total number of citations as well as the total link strength. The articles with the highest indices of bibliographic coupling are highlighted.
Figure 5 depicts the overall visualizations of article bibliographic coupling. They show a significant cluster of coupling strength, which is primarily made up of articles published a decade ago. This is due, in part, to the relatively low number of articles published prior to 2010 (see Fig. 3), which caused previously published articles to be referenced in the majority of current articles.
Table 1
Bibliographic coupling analysis of articles
Document | Citations | Total Link Strength |
Vivekanand (2020a) | 1 | 1140 |
Gupta (2010) | 96 | 1127 |
Zhang (2016b) | 35 | 1106 |
Gawusu (2021) | 1 | 1083 |
Talimi (2012a) | 92 | 1066 |
Vivekanand (2020b) | 1 | 1066 |
Magnini (2016a) | 30 | 1064 |
Ganapathy (2013a) | 17 | 1053 |
Kishor (2017) | 2 | 1018 |
Zhang (2018) | 1 | 993 |
Zhang (2016c) | 22 | 993 |
Vivekanand (2019) | 5 | 986 |
Etminan | 0 | 971 |
Asadolahi (2011) | 64 | 951 |
Pan (2015) | 14 | 936 |
Kumari (2019) | 11 | 925 |
Majumder (2013) | 22 | 923 |
Khodaparast (2015) | 27 | 915 |
Sur (2012) | 33 | 895 |
Magnini (2016b) | 24 | 874 |
Talimi (2012b) | 29 | 859 |
Rattner (2016) | 3 | 852 |
Magnini (2013) | 45 | 842 |
Abdollahi (2020b) | 4 | 827 |
Ganapathy (2013c) | 38 | 811 |
Howard (2013) | 30 | 799 |
Mehta (2014b) | 23 | 798 |
Ganapathy (2013d) | 101 | 795 |
Younes (2017) | 4 | 756 |
Gupta (2013) | 63 | 737 |
Ferrari (2017) | 26 | 733 |
Silva (2019) | 3 | 726 |
Leung (2012a) | 34 | 725 |
Krishnan (2010) | 13 | 723 |
Talimi (2013) | 25 | 717 |
Asadolahi (2012) | 52 | 711 |
Leung (2012b) | 28 | 686 |
Zhang (2020c) | 2 | 686 |
Li (2017a) | 35 | 683 |
Ferrari (2018) | 33 | 681 |
4.1.3. Authors, affiliations, funding agencies, and collaboration networks
The threshold required for an author was 2 articles, which resulted in 392 authors out of the total of 2004 authors. The total strength of the bibliographic coupling links with other authors was computed for each of these 392 authors. The authors with the strongest links were chosen, as shown in Table 3 below. The network visualization of the bibliographic coupling of the author is shown in Fig. 9. This network has 381 authors, 10 clusters, and 29367 links, and a total link strength of 37506. This paints a picture of a very strong collaborative network among the authors. There is a major cluster of authors with high indices of bibliographic coupling. A thorough examination of the author sample reveals a concentration of authors within this major cluster.
Table 2
Bibliographic coupling analysis of the authors
Author | Documents | Citations | Total Link Strength |
Fletcher, David F. | 9 | 423 | 13403 |
Zhang, Jingzhi | 11 | 81 | 12938 |
Gupta, Raghvendra | 8 | 348 | 12067 |
Haynes, Brian S. | 8 | 388 | 11358 |
Thome, J. R. | 7 | 275 | 8636 |
Wang, Shuangfeng | 14 | 196 | 8194 |
Magnini, M. | 6 | 154 | 8136 |
Morales, Rigoberto E. M. | 11 | 73 | 7926 |
Leung, Sharon S. Y. | 5 | 225 | 7177 |
Li, Wei | 5 | 69 | 7008 |
Thome, John R. | 10 | 444 | 6961 |
Muzychka, Y. S. | 6 | 202 | 6561 |
Raju, V. R. K. | 3 | 7 | 5787 |
Vivekanand, S. V. B. | 3 | 7 | 5787 |
Ganapathy, Harish | 4 | 92 | 5588 |
Kocabiyik, S. | 3 | 146 | 5373 |
Talimi, V. | 3 | 146 | 5373 |
Khandekar, Sameer | 7 | 92 | 5121 |
Al-Hajri, Ebrahim | 3 | 78 | 4887 |
Garimella, Suresh V. | 6 | 143 | 4874 |
Shikazono, Naoki | 7 | 237 | 4800 |
Bassani, Carlos L. | 7 | 50 | 4711 |
Mehta, Balkrishna | 4 | 81 | 4529 |
Garimella, Srinivas | 6 | 48 | 4406 |
Magnini, Mirco | 3 | 83 | 4367 |
Wang, Xinyu | 4 | 9 | 4114 |
Ohadi, Michael M. | 3 | 54 | 4068 |
Han, Youngbae | 6 | 236 | 4054 |
Chen, Jinfang | 5 | 81 | 3736 |
Marcelino Neto, Moises A. | 4 | 12 | 3695 |
Weibel, Justin A. | 4 | 30 | 3650 |
Xu, Jinliang | 7 | 66 | 3602 |
Wu, Zan | 5 | 24 | 3594 |
Wongwises, Somchai | 9 | 303 | 3544 |
Asadolahi, Azadeh N. | 2 | 116 | 3417 |
Shemer, L | 6 | 339 | 3403 |
Hampel, Uwe | 7 | 150 | 3295 |
He, Kui | 5 | 65 | 3266 |
Kesana, Netaji R. | 5 | 128 | 3208 |
Mclaury, Brenton S. | 5 | 128 | 3208 |
Similarly, Fig. 10 emphasizes the affiliations' bibliographic coupling. A minimum of 5 articles per affiliation was set as the criterion, and 54 of the 566 affiliations meet this criterion. Table 3 shows the affiliations with the highest bibliographic coupling indices. However, see Fig. 11 for affiliations with the highest research output. Figure 12 also depicts the network diagram for the affiliation's bibliographic coupling. The 54 institutions are made up of 12 clusters that form 1237 links with a total link strength of 41170. It highlights the affiliations' collaborative network.
Except for the Warsaw University of Technology, these institutions have a very strong collaborative network, as illustrated in Fig. 10. This may be due to the nature of the research conducted at that institution. Purdue University, Purdue University System, and Purdue University West Lafayette Campus are at the top of the list in terms of research output, with 28 publications each. The Indian Institute of Technology comes in with 26 publications (see Fig. 11). The People's Republic of China (PRC) has the highest combined research output, with the South China University of Technology producing 23 publications, followed by Shanghai Jiao Tong University and the China University of Petroleum, with 22 and 21 publications, respectively.
Table 3
Bibliographic coupling analysis of affiliations
Organization | Documents | Citations | Total Link Strength |
Ecole Polytech Fed Lausanne | 18 | 746 | 5543 |
Univ Sydney | 9 | 423 | 4443 |
Purdue Univ | 26 | 607 | 4144 |
Indian Inst Technol | 17 | 335 | 3994 |
Univ Maryland | 8 | 295 | 3600 |
Shandong Univ | 11 | 34 | 3388 |
Petr Inst | 6 | 243 | 3086 |
Zhejiang Univ | 6 | 80 | 2859 |
Shanghai Jiao Tong Univ | 22 | 280 | 2719 |
Mem Univ Newfoundland | 9 | 285 | 2630 |
Natl Inst Technol | 5 | 41 | 2164 |
Univ Tokyo | 11 | 305 | 2132 |
Univ Nottingham | 14 | 214 | 2094 |
South China Univ Technol | 14 | 98 | 2071 |
Georgia Inst Technol | 9 | 132 | 1960 |
Tsinghua Univ | 15 | 167 | 1702 |
Tel Aviv Univ | 14 | 410 | 1679 |
Chinese Acad Sci | 15 | 245 | 1587 |
Xi An Jiao Tong Univ | 15 | 201 | 1570 |
Univ Limerick | 6 | 226 | 1528 |
Univ Ljubljana | 5 | 190 | 1472 |
North China Elect Power Univ | 7 | 38 | 1471 |
S China Univ Technol | 9 | 146 | 1400 |
Univ Tulsa | 9 | 162 | 1346 |
Fed Univ Technol Parana Utfpr | 7 | 41 | 1288 |
Harbin Engn Univ | 7 | 48 | 1265 |
Univ Chinese Acad Sci | 7 | 78 | 1260 |
Lund Univ | 5 | 24 | 1239 |
Tianjin Univ | 12 | 93 | 1167 |
Univ Los Andes | 7 | 159 | 1160 |
China Univ Petr | 15 | 100 | 1100 |
Nucl Power Inst China | 6 | 46 | 1098 |
King Mongkuts Univ Technol Thonburi | 8 | 274 | 1041 |
Univ Illinois | 6 | 35 | 1019 |
Beijing Jiaotong Univ | 7 | 52 | 997 |
Beijing Key Lab Flow & Heat Transfer Phase Changi | 6 | 52 | 977 |
Eindhoven Univ Technol | 9 | 236 | 969 |
Univ Bologna | 9 | 169 | 838 |
Univ Fed Santa Catarina | 6 | 67 | 678 |
Kobe Univ | 6 | 23 | 655 |
China Univ Petr East China | 6 | 32 | 654 |
Helmholtz Zentrum Dresden Rossendorf | 6 | 67 | 588 |
Univ Estadual Campinas | 6 | 73 | 531 |
Kyoto Univ | 6 | 459 | 479 |
Katholieke Univ Leuven | 5 | 59 | 440 |
Russian Acad Sci | 5 | 17 | 426 |
Tu Dortmund Univ | 5 | 118 | 410 |
Southeast Univ | 5 | 35 | 324 |
Natl Tsing Hua Univ | 5 | 136 | 262 |
Beijing Univ Technol | 6 | 155 | 253 |
Korea Atom Energy Res Inst | 5 | 57 | 242 |
Islamic Azad Univ | 5 | 33 | 175 |
Warsaw Univ Technol | 7 | 111 | 161 |
Mahasarakham Univ | 5 | 71 | 62 |
Co-citation, as previously stated, is the frequency with which two articles are cited together. This frequency was calculated by comparing and counting identical entries in the lists of citing published articles in the SCI database. For the current study, networks of co-cited papers were created. The patterns for co-citation are found to differ significantly from bibliographic coupling patterns but are generally in agreement with direct citation patterns [2]. Clusters of co-cited papers offer a novel approach to studying science's specialty structure. The top co-cited authors are highlighted in Table 4, with a minimum of 2 citations per author. As a result, there are 9342 authors, but only 3481 authors meet the threshold for this calculation. The total strength of co-citation links with other authors was calculated for each of the 3481 authors, and the authors with the greatest link strength were chosen. As shown in Fig. 12, the network of co-citation of cited authors consists of 3475 items, 17 clusters, 164008 links, and a total link strength of 349527. The figure shows that there is a very strong collaborative network among authors.
Table 4
Co-citation analysis of the cited authors.
Author | Citations | Total Link Strength |
Gupta, R | 152 | 6056 |
Taitel, Y | 185 | 5376 |
Kandlikar, Sg | 165 | 5296 |
Kreutzer, Mt | 117 | 4631 |
Thome, Jr | 137 | 4517 |
Kashid, Mn | 101 | 3788 |
Brackbill, Ju | 93 | 3429 |
Triplett, Ka | 95 | 3313 |
Taha, T | 78 | 3289 |
Magnini, M | 80 | 3124 |
Barnea, D | 101 | 3018 |
Bretherton, Fp | 77 | 3006 |
Qu, Wl | 86 | 2943 |
Talimi, V | 65 | 2859 |
Mishima, K | 91 | 2787 |
Asadolahi, An | 65 | 2726 |
Hetsroni, G | 90 | 2683 |
Aussillous, P | 64 | 2631 |
Han, Y | 78 | 2621 |
Yue, J | 59 | 2592 |
Abiev, Rs | 62 | 2551 |
Ganapathy, H | 42 | 2331 |
Hirt, Cw | 56 | 2269 |
Revellin, R | 73 | 2264 |
Leung, Ssy | 55 | 2254 |
Chisholm, D | 63 | 2205 |
Shao, N | 52 | 2172 |
Dukler, Ae | 63 | 2131 |
Ishii, M | 83 | 2129 |
The network of cited source co-citations also includes 444 items, 10 clusters, 23222 links, and a total link strength of 355607. The International Journal of Heat and Mass Transfer (IJHM) ranks first with 2919 citations and a total link strength of 68901. As a result, the IJHM is the most productive and influential journal. The International Journal of Multiphase Flows is the second most influential journal, followed by Chemical Engineering Science, and Experimental Thermal Fluid Science (see Table 5). In the form of network analysis, Fig. 13 expands on the most influential sources/journals. It displays the connections between all of the journals that meet the calculation's threshold.
Table 5
Co-citation of the cited sources
Source | Citations | Total Link Strength |
Int J Heat Mass Tran | 2919 | 77702 |
Int J Multiphas Flow | 2334 | 64288 |
Chem Eng Sci | 1872 | 62582 |
Exp Therm Fluid Sci | 835 | 26292 |
AICHE J | 573 | 20339 |
J Heat Trans-T ASME | 545 | 17273 |
Appl Therm Eng | 571 | 16053 |
J Fluid Mech | 425 | 14735 |
Ind Eng Chem Res | 355 | 14722 |
Int J Heat Fluid Fl | 424 | 14592 |
Chem Eng J | 326 | 13285 |
J Comput Phys | 337 | 13142 |
Int J Therm Sci | 346 | 12472 |
Phys Fluids | 291 | 10694 |
Heat Transfer Eng | 298 | 10218 |
Nucl Eng Des | 373 | 9775 |
Int J Refrig | 279 | 8639 |
Lab Chip | 203 | 8304 |
Microfluid Nanofluid | 186 | 7956 |
Int Commun Heat Mass | 208 | 7357 |
Chem Eng Res Des | 181 | 7128 |
Thesis | 185 | 5853 |
Chem Eng Process | 136 | 5703 |
Flow Meas Instrum | 174 | 5240 |
Chem Eng Technol | 120 | 5169 |
Can J Chem Eng | 129 | 4528 |
J Fluid Eng-T Asme | 126 | 4287 |
Exp Fluids | 128 | 4170 |
J Power Sources | 146 | 3743 |
Powder Technol | 125 | 3577 |
Ind Eng Chem Fund | 103 | 3405 |
Heat Mass Transfer | 90 | 3390 |
J Micromech Microeng | 103 | 3325 |
Appl Energ | 82 | 3263 |
The threshold for citations of a cited reference for the computations of the cited references was 5. The overall strength of co-citation links with other cited references was computed for each of the 444 cited references that meet the computational requirement. The highest total link strengths for the references were chosen. The topmost co-citations of cited references have been chosen as [80]–[83] (see Table 6). The network of cited reference co-citations consists of 759 items, 8 clusters, 41472 links, and a total link strength of 76247. (see Fig. 14).
Table 6
Co-citation analysis of the cited references.
Author (s) | Journal | Year | Citations | Total Link Strength |
Brackbill et al. [80] | Journal of Computational Physics | 1992 | 93 | 1918 |
Bretherton [81] | Journal of Fluid Mechanics | 1961 | 77 | 1851 |
Aussillous and Quere [82] | Physics of Fluids | 2000 | 64 | 1679 |
Triplett et al. [84] | International Journal of Multiphase Flow | 1999 | 76 | 1471 |
Gupta R, [85] | Chemical Engineering Science | 2009 | 52 | 1415 |
Hirt [86] | Journal of Computational Physics | 1981 | 54 | 1255 |
Han and Shikazono [87] | International Journal of Heat and Fluid Flow | 2009 | 53 | 1176 |
Kreutzer et al. [88] | AICHE Journal | 2005 | 45 | 1167 |
Gupta et al. [40] | Chemical Engineering Journal | 2010 | 45 | 1146 |
Taylor [89] | Journal of Fluid Mechanics | 1961 | 47 | 1120 |
Thome et al. [90] | International Journal of Heat and Mass Transfer | 2004 | 61 | 1063 |
Asadolahi et al. [42] | Chemical Engineering Science | 2011 | 35 | 1017 |
Kreutzer et al. [91] | Chemical Engineering Science | 2005 | 41 | 961 |
Qian and Lawal [92] | Chemical Engineering Science | 2006 | 39 | 960 |
Lockhart and Martinelli [93] | Chemical Engineering Progress | 1949 | 57 | 923 |
Walsh et al. [94] | International Journal of Heat and Mass Transfer | 2010 | 34 | 899 |
Talimi V, [95] | International Journal of Multiphase Flow | 2012 | 32 | 863 |
Taha and Cui [96] | Chemical Engineering Science | 2004 | 30 | 846 |
Chung and Kawaji [97] | International Journal of Multiphase Flow | 2004 | 42 | 837 |
Liu et al. [98] | Industrial Engineering and Chemical Research | 2005 | 33 | 789 |
Angeli and Gavriilidis [99] | Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science | 2008 | 30 | 772 |
Mehdizadeh et al. [100] | International Journal of Heat and Mass Transfer | 2011 | 29 | 758 |
Asadolahi et al. [55] | Chemical Engineering Science | 2012 | 27 | 739 |
Lakehal et al. [101] | Microfluid and Nanofluid | 2008 | 23 | 739 |
Kawahara et al. [102] | International Journal of Multiphase Flow | 2002 | 39 | 717 |
Serizawa et al. [103] | Experimental Thermal and Fluid Science | 2002 | 40 | 714 |
Gupta et al. [104] | The Journal of Computational Multiphase Flow | 2010 | 29 | 696 |
Leung et al. [43] | Chemical Engineering Science | 2010 | 25 | 688 |
Taha and Cui [105] | Chemical Engineering Science | 2006 | 28 | 684 |
Taitel et al. [106] | AICHE Journal | 1980 | 58 | 677 |
Nicklin D.J., [107] | Chemical Engineering Journal | 1962 | 47 | 651 |
Leung et al. [64] | Ind Eng Chem Res | 2012 | 22 | 629 |
Fairbrother and Stubbs [108] | J Chem Soc | 1935 | 22 | 623 |
Mishima and Hibiki [109] | International Journal of Multiphase Flow | 1996 | 32 | 620 |
Ong and Thome [110] | Experimental Thermal and Fluid Science | 2011 | 30 | 611 |
Thulasidas et al. [111] | Chemical Engineering Science | 1997 | 27 | 607 |
Magnini et al. [112] | International Journal of Heat and Mass Transfer | 2013 | 27 | 604 |
Armand A., | Izvestiia Vsesoiuzny | 1946 | 24 | 601 |
Taitel and Dukler [113] | AICHE Journal | 1976 | 59 | 599 |
Dukler and Hubbard [114] | Ind Eng Chem Fund | 1975 | 37 | 581 |
Thulasidas et al. [115] | Chemical Engineering Science | 1995 | 23 | 572 |
Fukagata et al. [116] | International Journal of Heat and Fluid Flow | 2007 | 21 | 570 |
Bendiksen [117] | International of Munltiphase Flow | 1984 | 35 | 568 |
Bandara et al. [46] | Chemical Engineering Science | 2015 | 20 | 546 |
Shao et al. [118] | International Journal of Heat and Fluid Flow | 2008 | 19 | 543 |
He et al. [52] | International Journal of Heat and Fluid Flow | 2010 | 20 | 541 |
Suo and Griffith [119] | Journal of Basic Engineering | 1964 | 24 | 538 |
Gupta et al. [120] | Chemical Engineering Science | 2013 | 20 | 532 |
Dai et al. [121] | Chemical Engineering Science | 2015 | 19 | 530 |
Dupont et al. [122] | International Journal of Heat and Mass Transfer | 2004 | 23 | 525 |
The distribution of countries researching heat transfer characteristics of Taylor flow is depicted in Fig. 15. It focuses on the most influential and productive countries in this field of study. The People's Republic of China (PRC) ranked first with a total research output of 231, followed by the United States, which ranked second with 128 publications. India and Germany came in second and third, with 49 and 43 publications, respectively. England is ranked fifth on the list, with 40 publications. Although the list includes both developed and developing countries, developed countries account for the majority of the top productive and impactful countries. This demonstrates that this field is still not widely conducted on a global scale.