A MOVING-BOUNDARY FORMULATION FOR MODELING TIME-DEPENDENT 2-PHASE FLOWS

被引：116

作者：

GRALD, EW

MACARTHUR, JW

机构：

[1] HONEYWELL INC,IND AUTOMAT & CONTROL,16404 N BLACK CANYON HIGHWAY,PHOENIX,AZ 85023

[2] FLUENT INC,CENTERRA RESOURCE PK,LEBANON,NH

来源：

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | 1992年 / 13卷 / 03期

关键词：

MATHEMATICAL MODEL; 2-PHASE FLOW; MOVING BOUNDARY; EVAPORATOR; HEAT PUMP;

D O I：

10.1016/0142-727X(92)90040-G

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A mathematical model describing the transient interactions in one-dimensional two-phase flows with heat transfer is presented. A moving-boundary refrigerant model is used to predict the position of the two-phase/vapor interface. A boundary immobilization technique is used to predict the temperature profile along the heat-exchanger wall. Typical results of an evaporator model, in terms of interface position and discharge superheat, are presented for inlet flow disturbances. The model is then used in an overall heat-pump simulation to predict cyclic performance. The results compare favorably to those obtained with a high-fidelity spatially dependent heat-pump model, but require significantly less computational effort.

引用

页码：266 / 272

页数：7

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