Purpose

The purpose of this paper is to solve the problem of a three-dimensional computational analysis for an elliptic-shaped cavity in a pipe under constant temperature.

Design/methodology/approach

The three-dimensional computational solution of governing equations was performed by using finite volume method with different temperature difference.

Findings

The parafin wax was chosen as a phase change material (PCM), and melting fraction, streamlines and isotherms are formed for different time step. It is found that position B give better results than that of position A, and temperature difference effects the duration of melting of PCM.

Originality/value

The three-dimensional analysis of melting in an ellipsoidal pipe with inner pipe with higher temperature is the main originality of this work.

中文翻译：

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椭球辐射体相变的三维计算分析

目的

本文的目的是解决在恒温条件下对管道中椭圆形腔进行三维计算分析的问题。

设计/方法/方法

采用具有不同温差的有限体积法对控制方程进行了三维计算。

发现

选择石蜡作为相变材料（PCM），并在不同的时间步长形成熔融分数，流线和等温线。发现位置B比位置A具有更好的结果，并且温度差影响PCM的熔化持续时间。

创意/价值

这项工作的主要创意是对内管温度较高的椭圆形管中的熔体进行三维分析。