| Enhancement of heat transfer by a combination of three-start spirally corrugated tubes with a twisted tape V Zimparov International Journal of Heat and Mass Transfer 44 (3), 551-574, 2001 | 215 | 2001 |
| Enhancement of heat transfer by a combination of a single-start spirally corrugated tubes with a twisted tape V Zimparov Experimental Thermal and Fluid Science 25 (7), 535-546, 2002 | 153 | 2002 |
| Extended performance evaluation criteria for enhanced heat transfer surfaces: heat transfer through ducts with constant heat flux V Zimparov International Journal of Heat and Mass Transfer 44 (1), 169-180, 2001 | 124 | 2001 |
| Prediction of friction factors and heat transfer coefficients for turbulent flow in corrugated tubes combined with twisted tape inserts. Part 2: heat transfer coefficients V Zimparov International Journal of Heat and Mass Transfer 47 (2), 385-393, 2004 | 122 | 2004 |
| Extended performance evaluation criteria for enhanced heat transfer surfaces: heat transfer through ducts with constant wall temperature V Zimparov International Journal of Heat and Mass Transfer 43 (17), 3137-3155, 2000 | 121 | 2000 |
| Prediction of friction factors and heat transfer coefficients for turbulent flow in corrugated tubes combined with twisted tape inserts. Part 1: friction factors V Zimparov International Journal of Heat and Mass Transfer 47 (3), 589-599, 2004 | 117 | 2004 |
| Energy conservation through heat transfer enhancement techniques V Zimparov International Journal of Energy Research 26 (7), 675-696, 2002 | 105 | 2002 |
| Heat transfer and friction characteristics of spirally corrugated tubes for power plant condensers—1. Experimental investigation and performance evaluation VD Zimparov, NL Vulchanov, LB Delov International journal of heat and mass transfer 34 (9), 2187-2197, 1991 | 98 | 1991 |
| Performance evaluation criteria for enhanced heat transfer surfaces VD Zimparov, NL Vulchanov International journal of heat and mass transfer 37 (12), 1807-1816, 1994 | 88 | 1994 |
| Thermodynamic optimization of tree-shaped flow geometries VD Zimparov, AK Da Silva, A Bejan International Journal of Heat and Mass Transfer 49 (9-10), 1619-1630, 2006 | 87 | 2006 |
| Constructal tree-shaped parallel flow heat exchangers VD Zimparov, AK da Silva, A Bejan International Journal of Heat and Mass Transfer 49 (23-24), 4558-4566, 2006 | 80 | 2006 |
| Thermodynamic optimization of tree-shaped flow geometries with constant channel wall temperature VD Zimparov, AK Da Silva, A Bejan International Journal of Heat and Mass Transfer 49 (25-26), 4839-4849, 2006 | 67 | 2006 |
| Performance evaluation of tube-in-tube heat exchangers with heat transfer enhancement in the annulus VD Zimparov, PJ Penchev, JP Meyer Thermal Science 10 (1), 45-56, 2006 | 31 | 2006 |
| Performance characteristics of deep corrugated tubes with twisted-tape inserts VD Zimparov, VM Petkov, AE Bergles Journal of Enhanced Heat Transfer 19 (1), 2012 | 27 | 2012 |
| Performance evaluation of some tube inserts as heat transfer enhancement techniques VD Zimparov, PJ Penchev Heat transfer engineering 27 (8), 39-46, 2006 | 24 | 2006 |
| Application of discriminated analysis to low Reynolds number swirl flows in circular tubes with twisted-tape inserts. Pressure drop correlations VD Zimparov, VM Petkov International Review of Chemical Engineering 1 (4), 346-356, 2009 | 23 | 2009 |
| Performance evaluation of ducts with non-circular shapes: laminar fully developed flow and constant wall temperature VM Petkov, VD Zimparov, AE Bergles International Journal of Thermal Sciences 79, 220-228, 2014 | 22 | 2014 |
| Heat transfer and friction characteristics of spirally corrugated tubes for power plant condensers—2. A mixing-length model for predicting fluid friction and heat transfer ML Vulchanov, VD Zimparov, LB Delov International journal of heat and mass transfer 34 (9), 2199-2206, 1991 | 21 | 1991 |
| Performance characteristics of some" rough surfaces" with tube inserts for single-phase flow VD Zimparov, PJ Penchev, AE Bergles Journal of Enhanced Heat Transfer 13 (2), 2006 | 15 | 2006 |
| Compound heat transfer augmentation by a combination of spirally corrugated tubes with a twisted tape V Zimparov, V Petkov Proc. Compact Heat Exchengers A Festschrift on the, 477-482, 2002 | 14 | 2002 |