열유체실습 결과레포트 3

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"열유체실습 결과레포트 3"에 대한 내용입니다.

목차

i. Abstract

ii. Table of Contents

iii. Introduction

iv. Methods
1) Experimental Instruments
2) Method

v. Results

vi. Discussion
1) Usage of inaccurate properties of material
2) The presence of other modes of heat transfer
3) Temperature measurement before steady state
4) Error of electrical heater power supply
5) Bernoulli equation assumption dissatisfaction

vii. Conclusion

viii. References

ix. Appendices

본문내용

It is important to find convective heat transfer coefficient and calculate heat transfer. Because many mobile devices can be affected by the heat transfer, like performance of device or lifetime of device. So, in this experiment, we are going to figure out the method of getting the convective heat transfer coefficient (h).
Convection is to describe energy transfer between a surface and a fluid moving over the surface. If the temperature of flows over a surface is different with the temperature of surface, the convection heat transfer will occur. The problem of convection is not simple one, for in addition to depending on numerous fluid properties such as density, viscosity, thermal conductivity, and specific heat, the coefficients depend on the surface geometry and the flow conditions. One of many cases, External flow involves fluid motion normal to the axis of a circular cylinder.

In the steady-state, all the electrical power supplied is dissipated to the air by convection.

참고 자료

Multi-scale Fluid Mechanics Lab. (2022), “Convection heat transfer.”, Mechanical Engineering, Sungkyunkwan Univ.
Frank M. White. (2016) Fluid Mechanics, 8th Ed., McGraw-Hill, New York
Wikipedia, “Pitot tube.” Internet:
https://en.wikipedia.org/wiki/Pitot_tube
rankred.com, “14 Best Examples of Convection with Simple Explanation.” Internet:
https://www.rankred.com/best-examples-of-convection/
curiosityfluids.com, “Air Properties Calculator.” Internet:
https://curiosityfluids.com/2019/02/15/air-properties-calculator/