TY - JOUR
T1 - Analysis of partial cavitation on cascade blades considering thermodynamic effect (1st report, steady analysis using singularity method)
AU - Watanabe, Satoshi
AU - Hidaka, Tatsuya
AU - Horiguchi, Hironori
AU - Furukawa, Akinori
AU - Tsujimoto, Yoshinobu
PY - 2005/1
Y1 - 2005/1
N2 - It is well known that the suction performance of turbopumps in cryogenic fluids is much better than that in cold water because of thermodynamic effect of cavitation. In the present study, an analytical method to simulate partial cavitating flow with the thermodynamic effect in a cascade is proposed : heat transfer between the cavity and the ambient fluid is modeled by one-dimensional unsteady heat conduction model under the slender body approximation and is coupled with flow analysis using a singularity method. In this report, the steady analysis is performed and the results are compared with those of experiments to validate the model of the present analysis. This analysis can be easily extended into unsteady stability analysis for cavitation instabilities such as rotating cavitation and cavitation surge.
AB - It is well known that the suction performance of turbopumps in cryogenic fluids is much better than that in cold water because of thermodynamic effect of cavitation. In the present study, an analytical method to simulate partial cavitating flow with the thermodynamic effect in a cascade is proposed : heat transfer between the cavity and the ambient fluid is modeled by one-dimensional unsteady heat conduction model under the slender body approximation and is coupled with flow analysis using a singularity method. In this report, the steady analysis is performed and the results are compared with those of experiments to validate the model of the present analysis. This analysis can be easily extended into unsteady stability analysis for cavitation instabilities such as rotating cavitation and cavitation surge.
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U2 - 10.1299/kikaib.71.133
DO - 10.1299/kikaib.71.133
M3 - Article
AN - SCOPUS:18344391241
VL - 71
SP - 133
EP - 139
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 701
ER -