|Table of Contents|

A calculation method of delivery lift of flat-plate helical inducer(PDF)

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

Issue:
2013年05期
Page:
51-54
Research Field:
研究与设计
Publishing date:

Info

Title:
A calculation method of delivery lift of flat-plate helical inducer
Author(s):
ZHANG Cui-ru;  SONG Yong;  WU Jie;  XU Nan
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
Keywords:
-
PACS:
V432-34
DOI:
-
Abstract:
Since the current methods of calculating the head for flat-plate helical inducer do not consider the influence of the vortex region at the inducer outlet, there is large deviation between the calculated head and the actual head. On the one hand, the vortex region reduces the area of the main flow, which makes the flow velocity at the outlet increased and finally makes the energy loss enhanced. On the other hand, the vortex itself expends the energy, which makes the head of the inducer reduced. Based on radial equilibrium theory, a correction calculation method for the head of the inducer is proposed in consideration of the effects of the vortex region at the inducer outlet. The head of two types of inducers was calculated with this method. The calculated results approach to the measured results in the experiment. It indicates that the new method can more accurately calculate the head of the inducer under the condition of non-cavitation.

References:

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