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Turbulent flow

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Image
Published: 31 August 2017
Fig. 29 Oxide film inclusion stringer from turbulent flow in the gating system. Used with permission from Ref 13 More
Image
Published: 31 October 2011
Fig. 12 Effect of geometry on commercial gas cup laminar and turbulent flow as detected by real-time holographic interferometry More
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Published: 31 October 2011
Fig. 13 Effect of geometry on converging cone cup laminar and turbulent flow as detected by real-time holographic interferometry More
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Published: 31 October 2011
Fig. 14 Effect of geometry on venturi gas cup laminar and turbulent flow as detected by real-time holographic interferometry More
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005898
EISBN: 978-1-62708-167-2
...Abstract Abstract This article focuses on the basic turbulent flow, and the thermal, mass-transfer, and hydrodynamic phenomena for use in modeling physical processes during induction melting. It provides a discussion on transport phenomena equations that includes the approximation of convective...
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Published: 01 December 2008
Fig. 5 Reynold's number, N R , and its relationship to flow characterization. (a) N R < 2000, laminar flow. (b) 2000 ≤ N R < 20,000, turbulent flow. (c) N R ≥ 20,000, severe turbulent flow More
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Published: 30 August 2021
Fig. 69 (a) Schematic representation of the production system. (b) Location of the pit plug and metal loss and transition of laminar fluid flow to turbulent flow More
Image
Published: 01 January 2006
Fig. 25 Erosion-corrosion related to high coolant flow. (a) Radiator tank erosion on wall opposite inlet. (b) Tube narrowing causes increased velocity and turbulent flow. See the article “Engine Coolants and Coolant System Corrosion” in this Volume. More
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Published: 31 October 2011
Fig. 9 Comparison of calculated and experimental weld geometries for 0.005 wt% S in 304 stainless steel assuming (a) laminar, (b) turbulent flow with k -ε model, and (c) dimensionless viscosity (μ t /μ). Adapted from Ref 31 More
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Published: 30 August 2021
Fig. 8 Copper alloy C44300 heat-exchanger tube that failed by impingement corrosion from turbulent flow of air and condensate along the shell-side surface. (a) Shell-side surface of tube showing damaged area. (b) Damaged surface showing ridges in affected area. Original magnification: 4×. (c More
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009017
EISBN: 978-1-62708-187-0
... metal and exaggerate the thermal degradation of the mold medium as well as increase costs. In addition, the mold filling time should be kept shorter than the mold producing time of the molding equipment to maximize productivity. Minimizing Turbulence Turbulent filling and flow in the gating...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001336
EISBN: 978-1-62708-173-3
... an important factor at high currents, because these jets can depress the surface of the weld pool and alter heat transfer to it. The rapid gas expansion can cause the flow to deviate from laminar and, in extreme cases, the flow can become turbulent. Turbulence tends to mix atmospheric contaminants into the arc...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005233
EISBN: 978-1-62708-187-0
.... Other examples include turbulence models, combustion models, and multiphase flow models. All models necessarily introduce imprecision, and an ongoing goal of research is to improve the accuracy of these models. Other issues for three-dimensional engineering CFD include geometry acquisition and grid...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005993
EISBN: 978-1-62708-166-5
... of heat or the protection of a construction most effectively against heat losses or gains. Three recognized modes of heat transfer are conduction, convection, and thermal radiation. They differ entirely in physical mechanism and governing laws. In conduction, heat flows from a high-temperature region...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005449
EISBN: 978-1-62708-196-2
... transmission of heat or the protection of a construction most effectively against heat losses or gains. Three recognized modes of heat transfer are conduction, convection, and thermal radiation. They differ entirely in physical mechanism and governing laws. In conduction, heat flows from a high-temperature...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005766
EISBN: 978-1-62708-165-8
...Abstract Abstract Quenching severity is agitation-dependent and therefore, magnitude and turbulence of fluid flow around a part in the quench zone are critically important relative to the uniformity of heat transfer throughout the quenching process. This article provides an overview...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005426
EISBN: 978-1-62708-196-2
... are “modeled” through modifications to the governing PDEs. Examples of models include turbulence models, combustion models, and multiphase flow models. All models necessarily introduce imprecision, and an ongoing goal of research is to improve the accuracy of these models. Other issues for three...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002444
EISBN: 978-1-62708-194-8
... modifications to the governing PDEs. Examples of models include turbulence models, combustion models, and multiphase flow models. All models necessarily introduce imprecision, and an ongoing goal of research is to improve the accuracy of these models. Other issues for three-dimensional engineering CFD...
Image
Published: 01 January 1997
Fig. 30 Effect of design features on flow. (a) Disturbances to flow can create turbulence and cause impingement damage. (b) Direct impingement should be avoided; deflectors or baffle plates can be beneficial. (c) Impingement from fluid overflowing from a collection tray can be avoided More
Image
Published: 01 January 2003
Fig. 6 Effect of design features on flow. (a) Disturbances to flow can create turbulence and cause impingement damage. (b) Direct impingement should be avoided; deflectors or baffle plates can be beneficial. (c) Impingement from fluid overflowing from a collection tray can be avoided More