Journal of Siberian Federal University. Engineering & Technologies: CFD of Stationary Supercavitating Evaporator with Steam Extraction in Constrained Stream

Journal of Siberian Federal University. Engineering & Technologies / CFD of Stationary Supercavitating Evaporator with Steam Extraction in Constrained Stream

Full text (.pdf)

Issue: Journal of Siberian Federal University. Engineering & Technologies. 2011 4 (5)
Authors: Likhachev, Dmitriy S.
Contact information: Likhachev, Dmitriy S. : Harbin Institute of Technology , No.92, West Da-Zhi Street, Harbin, Heilongjiang, 150001 PRC
Keywords: hydrodynamics; evaporator; steam extraction; heat-mass transfer; modeling; ANSYS; CFD; 3D
Abstract: Water flow with various temperature and velocity applied to the stationary cone cavitator with fixed dimensions in constrained flow combined with changing specific rate of steam extraction from the supercavity capture influence on cavitation number and the cross-sectional variation in threedimensional supercavity size. Total of eight numerical experiments resolve multifactor response. Three-dimensional simulation using ANSYS CFX v12.1 involving turbulent water-steam flow and heat-mass transfer shows that supercavity length is directly proportional to inlet temperature, and decreases with growth of specific rate of steam extraction. Reduction of the cavity dimensions during the steam extraction leads to the thinner supercavity. Therefore, results of CFD approach for stationary supercavitating evaporator with steam extraction qualitatively confirm with recent experimental results. Moreover, information about geometry, meshing, and setup of the problem, reveals the ways to improve the model and their difficulties.
Pages: 474-488
Paper at repository of SibFU: https://elib.sfu-kras.ru/handle/2311/2672

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).