低(变)湍流度风洞设计再探讨

摘要

Based on intensive investigation and successfully constructed wind tunnels in the past twenty years, the paper reviews some new ideas on the low (varying) turbulence wind tunnel design and they can be reference for engineering design. The paper gives the integrative curve for the design of stable section which plays a crucial role in reducing turbulence intensity, and the universal method for the contraction section which plays an important role in reducing turbulence intensity. Also it is proposed some personal opinion on the design of the power section and turning deflector, which optimize the whole system.%在资料调研与总结国内约20年来成功研制低(变)湍流度风洞的基础上,介绍了这类风洞设计思想中几点有新意的方法,供设计者参考.对减湍起决定作用的稳定段布局设计给出了一组综合性图线;对减湍起重要作用的收缩段设计提出了通用便捷的方法;对全系统起优化作用的风扇动力段及拐角导流片设计研制等有一定的新见解.