FINITE-LENGTH SOLUTIONS FOR ROTORDYNAMIC COEFFICIENTS OF TURBULENT ANNULAR SEALS

被引：107

作者：

CHILDS, DW

机构：

来源：

JOURNAL OF LUBRICATION TECHNOLOGY-TRANSACTIONS OF THE ASME | 1983年 / 105卷 / 03期

关键词：

FLOW OF FLUIDS - Turbulent - LUBRICATION;

D O I：

10.1115/1.3254636

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Expressions are derived which define dynamic coefficients for high-pressure annular seals typical of wear-ring and interstage seals employed in multistage centrifugal pumps. Completely developed turbulent flow is assumed in both the circumferential and axial directions, and is modeled by Hirs' turbulent lubrication equations. Linear zeroth and first-order perturbation equations are developed by an expansion in the eccentricity ratio. The influence of inlet swirl is accounted for in the development of the circumferential flow. Finite-length solutions for the coefficients are compared to two ″short-seal″ solutions.

引用

页码：437 / 445

页数：9