|Table of Contents|

Multi-parameter hydraulic optimization of inducer based on response surface method(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2023年05期
Page:
73-80
Research Field:
目次
Publishing date:

Info

Title:
Multi-parameter hydraulic optimization of inducer based on response surface method
Author(s):
HUANG Xilong;  YANG Baofeng;  YAN Junfeng;  LI Chunle;  XU Kaifu
(Xi'an Aerospace Propulsion Institute, Xi'an 710100, China)
Keywords:
inducer;  multi-parameter;  response surface method;  penalty function method;  hydraulic optimization
PACS:
V434.21
DOI:
-
Abstract:
In order to improve the hydraulic performance of prepressurizing turbopumps, the multi-parameter hydraulic optimization of the inducer was carried out by the response surface method. Six inducer's structural parameters including blade inclination angle, inlet blade angle, outlet blade angle, axial position of splitting vanes, inlet and outlet hub diameters were selected as influencing factors. 78 sets of inducer schemes were designed according to the principle of central composite inscribed design. The head and efficiency of 78 sets of inducers were obtained by numerical simulation. The effects of influence factors on the head and efficiency of inducers were obtained by range analysis of calculation results. The results show that outlet blade angle and outlet hub diameter have more influence on the head of the inducer. Axial position of splitting vanes and inlet hub diameter have little influence on the head. Inlet blade angle has the greatest influence on the efficiency of inducer. Outlet hub diameter has the least influence on the efficiency. The response surface models of head coefficient and efficiency were obtained respectively by linear regression. With the efficiency greater than 60% as the constraint condition, the penalty function method was used to optimize the head of inducer. The results show that the head of the optimized inducer is improved by 15.4%.

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