Effect of coating material on heat transfer and skin friction due to impinging jet onto a laser producedhole

S. Z. Shuja; B. S. Yilbas

doi:10.1016/j.optlastec.2013.01.017

Effect of coating material on heat transfer and skin friction due to impinging jet onto a laser producedhole

S. Z. Shuja, B. S. Yilbas^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Jet impingement onto a two-layer structured hole in relation to laser drilling is investigated. The hole consists of a coating layer and a base material. The variations in the Nusselt number and the skin friction are predicted for various coating materials. The Reynolds stress turbulent model is incorporated to account for the turbulence effect of the jet flow and nitrogen is used as the working fluid. The study is extended to include two jet velocities emanating from the conical nozzle. It is found that coating material has significant effect on the Nusselt number variation along the hole wall. In addition, the skin friction varies considerably along the coating thickness in thehole.

Original language	English
Pages (from-to)	243-250
Number of pages	8
Journal	Optics and Laser Technology
Volume	49
DOIs	https://doi.org/10.1016/j.optlastec.2013.01.017
State	Published - 2013

Bibliographical note

Funding Information:
The authors acknowledge the support of King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia , for thiswork.

Keywords

Laser hole
Nusselt number
Skin friction

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1016/j.optlastec.2013.01.017

Cite this

@article{10940e8dcb6349d9b434683ce2cf0ab5,

title = "Effect of coating material on heat transfer and skin friction due to impinging jet onto a laser producedhole",

abstract = "Jet impingement onto a two-layer structured hole in relation to laser drilling is investigated. The hole consists of a coating layer and a base material. The variations in the Nusselt number and the skin friction are predicted for various coating materials. The Reynolds stress turbulent model is incorporated to account for the turbulence effect of the jet flow and nitrogen is used as the working fluid. The study is extended to include two jet velocities emanating from the conical nozzle. It is found that coating material has significant effect on the Nusselt number variation along the hole wall. In addition, the skin friction varies considerably along the coating thickness in thehole.",

keywords = "Laser hole, Nusselt number, Skin friction",

author = "Shuja, \{S. Z.\} and Yilbas, \{B. S.\}",

note = "Funding Information: The authors acknowledge the support of King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia , for thiswork. ",

year = "2013",

doi = "10.1016/j.optlastec.2013.01.017",

language = "English",

volume = "49",

pages = "243--250",

journal = "Optics and Laser Technology",

issn = "0030-3992",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Effect of coating material on heat transfer and skin friction due to impinging jet onto a laser producedhole

AU - Shuja, S. Z.

AU - Yilbas, B. S.

N1 - Funding Information: The authors acknowledge the support of King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia , for thiswork.

PY - 2013

Y1 - 2013

N2 - Jet impingement onto a two-layer structured hole in relation to laser drilling is investigated. The hole consists of a coating layer and a base material. The variations in the Nusselt number and the skin friction are predicted for various coating materials. The Reynolds stress turbulent model is incorporated to account for the turbulence effect of the jet flow and nitrogen is used as the working fluid. The study is extended to include two jet velocities emanating from the conical nozzle. It is found that coating material has significant effect on the Nusselt number variation along the hole wall. In addition, the skin friction varies considerably along the coating thickness in thehole.

AB - Jet impingement onto a two-layer structured hole in relation to laser drilling is investigated. The hole consists of a coating layer and a base material. The variations in the Nusselt number and the skin friction are predicted for various coating materials. The Reynolds stress turbulent model is incorporated to account for the turbulence effect of the jet flow and nitrogen is used as the working fluid. The study is extended to include two jet velocities emanating from the conical nozzle. It is found that coating material has significant effect on the Nusselt number variation along the hole wall. In addition, the skin friction varies considerably along the coating thickness in thehole.

KW - Laser hole

KW - Nusselt number

KW - Skin friction

UR - https://www.scopus.com/pages/publications/84873628332

U2 - 10.1016/j.optlastec.2013.01.017

DO - 10.1016/j.optlastec.2013.01.017

M3 - Article

AN - SCOPUS:84873628332

SN - 0030-3992

VL - 49

SP - 243

EP - 250

JO - Optics and Laser Technology

JF - Optics and Laser Technology

ER -

Effect of coating material on heat transfer and skin friction due to impinging jet onto a laser producedhole

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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