Results 21 to 30 of about 50,864 (305)

Analysis of Timing Effect on Flow Field and Pulsation in Vertical Axial Flow Pump

Journal of Marine Science and Engineering, 2021
Vertical axial flow pump device has the characteristics of large flow and low head, which is widely used in pumping station projects with head of 3–9 m. In order to study the influence of the timing effect of the impeller relative flow channel and guide ...
Fan Yang, Pengcheng Chang, Yao Yuan, Na Li, Rongsheng Xie, Xiaowen Zhang, Zhikang Lin   +6 more
doaj   +1 more source

Drop size in a liquid pulsed sieve-plate extraction column [PDF]

, 2009
Peer reviewedPublisher ...
Afzal, W, Asghar, A, Hussain, SN, Muhammad, H, Sattar, H, Usman, M R   +5 more
core   +2 more sources

Unsteady Pressure Pulsations in Pumps—A Review

Energies, 2022
Unsteady pressure-pulsation-induced severe vibration and high alternating stress can cause some unexpected results, including impeller crack and structural damage of the entire pumping system.
Ning Zhang, Delin Li, Bo Gao, Dan Ni, Zhong Li   +4 more
doaj   +1 more source

Studying the Pulsation of Mira Variables in the Ultraviolet [PDF]

, 2000
We present results from an empirical study of the Mg II h & k emission lines of selected Mira variable stars, using spectra from the International Ultraviolet Explorer (IUE).
B. E. Wood, Bookbinder J. A., Buscombe W., Gillet D., Gry C., Judge P. G., Lallement R. L., M. Karovska, Mattei J. A., Merrill P. W., Nichols J. S., Perryman M. A. C., Wallerstein G. W.   +12 more
core   +3 more sources

Ultrasonic flow metering errors due to pulsating flow

Flow Measurement and Instrumentation, 2004
Abstract Transit-time ultrasonic flow meters present some advantages over other flow meters for district heating industries. They are both accurate and non-intrusive. It is well-known that ultrasonic flow meters are sensitive to installation effects. Installation effects could be static or dynamic.
Berrebi, Jonathan, Martinsson, Pär-Erik, Willatzen, M., Delsing, Jerker   +3 more
openaire   +4 more sources

Flow Pulsation Characteristic of External Gear Pump and Analysis of Influencing Factor

Jixie chuandong, 2020
Based on the bench test of oil pump， the influence of pump outlet pressure on flow pulsation of external gear oil pump is analyzed. The results show that the flow pulsation coefficient of the oil pump decreased with the increase of pump outlet pressure ...
Liangyi Shen, Lei Qu, Biao Shen
doaj  

Analysis of Pressure Pulsation Induced by Rotor-Stator Interaction in Nuclear Reactor Coolant Pump

Shock and Vibration, 2017
The internal flow of reactor coolant pump (RCP) is much more complex than the flow of a general mixed-flow pump due to high temperature, high pressure, and large flow rate.
Xu Zhang, Pengfei Wang, Xiaodong Ruan, Zhongbin Xu, Xin Fu   +4 more
doaj   +1 more source

Hemodynamic evaluation of pulsatile-flow generating device in left ventricular assist devices

Вестник трансплантологии и искусственных органов, 2023
Objective: to investigate the efficiency of a device that generates pulsatile flow during constant-speed axial-flow pump operation for use in left ventricular assist devices.Materials and methods.
A. S. Buchnev, A. P. Kuleshov, O. Yu. Esipova, A. A. Drobyshev, N. V. Grudinin   +4 more
doaj   +1 more source

Transition to turbulence in pulsating pipe flow

, 2017
Fluid flows in nature and applications are frequently subject to periodic velocity modulations. Surprisingly, even for the generic case of flow through a straight pipe, there is little consensus regarding the influence of pulsation on the transition ...
Hof, Björn, Ma, Xingyu, Song, Baofang, Warnecke, Sascha, Xu, Duo   +4 more
core   +1 more source

Interaction Between Convection and Pulsation [PDF]

, 2015
This article reviews our current understanding of modelling convection dynamics in stars. Several semi-analytical time-dependent convection models have been proposed for pulsating one-dimensional stellar structures with different formulations for how the
A Baglin, A Boury, A Grigahcène, A Grigahcène, A Moya, A Munteanu, A Nordlund, AA Townsend, AN Cox, AS Brun, AS Brun, AS Eddington, B Freytag, B Mosser, B Paczyński, CM Geroux, CS Rosenthal, CS Rosenthal, CW Straka, D Huber, D Mihalas, D Stello, D Stello, D-R Xiong, D-R Xiong, D-R Xiong, D-R Xiong, DA Keeley, DB Guenther, DO Gough, DO Gough, DO Gough, DO Gough, DO Gough, DO Gough, DO Gough, DO Gough, DO Gough, DO Gough, DO Gough, DO Gough, DO Gough, DO Gough, DO Gough, DO Gough, DR Xiong, DR Xiong, DR Xiong, DR Xiong, DR Xiong, DR Xiong, DW Kurtz, DW Kurtz, DW Kurtz, E Böhm-Vitense, E Mundprecht, E Rodríguez, E Schatzman, E Vitense, EA Olivier, EA Spiegel, EA Spiegel, EJ Öpik, EL Koschmieder, F Baudin, F Carrier, F Kamijo, F Kupka, F Kupka, FJ Robinson, G Bono, G Bono, G Gonczi, G Gonczi, G Gonczi, G Gonczi, G Houdek, G Houdek, G Houdek, G Houdek, G Houdek, G Houdek, G Houdek, G Houdek, G Houdek, G Houdek, G Houdek, G Houdek, GE Langer, GI Taylor, GI Taylor, GK Batchelor, GW Platzman, H Cugier, H Kjeldsen, H Kjeldsen, H Saio, H Shibahashi, H Siedentopf, H Siedentopf, HJ Muthsam, HM Antia, J Boussinesq, J Christensen-Dalsgaard, J Christensen-Dalsgaard, J Christensen-Dalsgaard, J Christensen-Dalsgaard, J Christensen-Dalsgaard, J Christensen-Dalsgaard, J Christensen-Dalsgaard, J Christensen-Dalsgaard, J Christensen-Dalsgaard, J Christensen-Dalsgaard, J Christensen-Dalsgaard, J Christensen-Dalsgaard, J Christensen-Dalsgaard, J Daszyńska-Daszkiewicz, J Daszyńska-Daszkiewicz, J De Ridder, J Montalbán, J Rotta, JA Guzik, JA Guzik, JA Guzik, JA Guzik, JC Suärez, JI Castor, JL Innis, JM Mihaljan, JO Petersen, JP Cox, JR Buchler, JR Elliott, JR Elliott, K Belkacem, K Belkacem, K Belkacem, K Hanjalic, KL Chan, L Biermann, L Biermann, L Biermann, L Biermann, L Bigot, L Prandtl, L Prandtl, LA Balona, LA Balona, LD Landau, LH Li, LV Keller, M Breger, M Gabriel, M Gabriel, M Gabriel, M Gehmeyr, M Grosjean, M Gruberbauer, M Gruberbauer, M Millionshtchikov, M Salaris, M Takata, M Takata, M-A Dupret, M-A Dupret, M-A Dupret, M-A Dupret, M-A Dupret, M-A Dupret, M-A Dupret, M-A Dupret, M-A Dupret, M-A Dupret, M-A Dupret, MH Montgomery, MH Montgomery, MS Cunha, MS Cunha, MS Miesch, N Baker, N Baker, N Baker, N Dolez, NH Baker, NH Baker, NJ Balmforth, NJ Balmforth, NJ Balmforth, NJ Balmforth, NJ Balmforth, O Kochukhov, P Goldreich, P Goldreich, P Kumar, P Ledoux, P Ledoux, PA Stamford, PA Yecko, PD Edmonds, PD Tooth, PH Smith, PY Chou, R Garrido, R Kuhfuß, R Samadi, R Smolec, R Smolec, R Smolec, R Smolec, R Swenson, R Trampedach, R Trampedach, R Trampedach, R Trampedach, RA García, RD Watson, RF Stein, RF Stein, RF Stein, RF Stellingwerf, RF Stellingwerf, RF Stellingwerf, RF Stellingwerf, RG Deupree, RG Deupree, RH Kraichnan, RK Ulrich, S Chandrasekhar, S Chandrasekhar, S Frandsen, S Hekker, S Mathur, S Théado, S Wedemeyer, S-A Orszag, SA Grossman, SC Tripathy, ST Fletcher, T Appourchaux, T Appourchaux, T Appourchaux, T Kallinger, TC Teixeira, TG Cowling, TM Brown, TS Metcalfe, TS Metcalfe, V Antoci, V Antoci, VM Canuto, VM Canuto, VM Canuto, VM Canuto, VM Canuto, W Dziembowski, W Dziembowski, W Dziembowski, W Heisenberg, W Rodi, W Unno, W Unno, W Unno, W Unno, W Unno, W Unno, WA Dziembowski, WH Ball, WJ Chaplin, WJ Chaplin, WP Jones, WP Jones, Y-C Kim, Z Magic, Z Magic   +273 more
core   +4 more sources