Design Refinement of Induction and Exhaust Systems Using Steady-State Flow Bench Techniques

Leydorf, George F.; Minty, R. G.; Fingeroot, M.

doi:10.4271/720214

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…Optimising the ports flow provides a more uniform mixture of fuel and air which makes it possible to operate the engine with leaner fuel air mixture, reducing emissions and fuel consumption (Pierson and Richardson, 1999). Key design variables influencing the flow are: angle of approach, height of approach, flow path length (Leydorf et al , 1995). Furthermore, the angle through which the induction stream must turn into the intake port has a considerable effect on its flow capability.…”

Section: Application Example 2: Cylinder Intake Portmentioning

confidence: 99%

Investigating critical design characteristics through experimental testing of photopolymeric models

Karalekas

2004

Rapid Prototyping Journal

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Engineering design optimisation of products and investigating the influence of various critical design parameters on their operational performance has been a complex task. Despite the recent development of sophisticated computer hardware and software tools, increasing the use of computer-based simulation methods and virtual prototypes, the product development process could be sharply aided by the implementation of rapidly available physical models of the products' conceptual designs. Such rapid prototyping models could be used for experimental evaluation and validation purposes, where critical aspects of the product can be investigated, tested and refined. The objective of this study was to investigate the prospect, and demonstrate the ability, of obtaining engineering data through experimental testing of stereolithography built models. This paper reports on the experimental data obtained from the two application examples studied: a consumer food metal container and an engine intake port component.

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Section: Application Example 2: Cylinder Intake Portmentioning

confidence: 99%

Investigating critical design characteristics through experimental testing of photopolymeric models

Karalekas

2004

Rapid Prototyping Journal

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“…The design of the manifold can be traced back to the 1950s [1]. For the past several decades, and to a lesser extent up to the present time, 1D model has been used extensively in the manifold design [2][3][4][5][6]. A one-dimensional approach requires many simplifying assumptions.…”

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confidence: 99%

Experimental and Numerical Study on the Improvement of Uniformity Flow in a Parallel Flow Channel

Alawee¹,

Hassan²,

Mohammad³

2016

ETJ

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The flow uniformity among individual branches within a manifold system can be a significant factor to predict the performance and efficiency of various engineering applications. The nonuniform flow within the manifold system occurs due to the development of vena-contracta at the inlet to the tubes. In order to reduce the flow mal-distribution in the header-lateral system, an approach is presented in this paper. In this approach, the inlet to the lateral pipe is arranged such that the flow enters the lateral pipe with a velocity vector inclined at a certain angle with respect to the cross section of the manifold. Two test sections representing two header structures were used in this study. The first test section is conventional manifold, the second is a modified manifold (the lateral pipes of manifold were tilted a certain angle with axis of manifold). In both test sections, the diameter of the main pipe was 101.6 mm and of the lateral pipe was 50.8 mm. The results of this study showed that the method of changing the angle of water entry to lateral pipes in order to obtain uniform flow has improved the flow distribution by 54% at entry angle of 6 0 , that is a reduction in absolute stander deviation from (0.481) to (0.136) and the maximum ratio between highest and lowest flow is 26%. Also, the change in the total flow rate has a slight effect on flow uniformity. INTROUDUCTIONlow in Manifolds is employed in wide industrial applications such as water distribution systems, solar collectors, automobile engines and heat exchangers. The design of the manifold can be traced back to the 1950s [1]. For the past several decades, and to a lesser extent up to the present time, 1D model has been used extensively in the manifold design [2][3][4][5][6]. A one-dimensional approach requires many simplifying assumptions. Recently, a numerical simulation has been used for the design of manifolds. References [7][8][9][10][11] are samples of the literature. Manifolds are classified into two categories. One of these categories is dividing manifolds, where there is a one inlet and multiple outlets. The other category is combing manifolds, where there are multiple inlets and a one exit. The main goal of manifold design is to achieve an equal flow rate at each outlet of the distribution manifold.A major pioneering work has been reported by Burt et al. [12] for pipe spargers. Authors have found that the non-uniformity depends upon the net pressure profile as a result of (a) frictional F

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Use of Computational Fluid Dynamics (CFD) Tools for High-Performance Engine Tuning

Guy

Teipel

Stanglmaier

2006

SAE Technical Paper Series

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Design Refinement of Induction and Exhaust Systems Using Steady-State Flow Bench Techniques

Cited by 3 publications

References 4 publications

Investigating critical design characteristics through experimental testing of photopolymeric models

Investigating critical design characteristics through experimental testing of photopolymeric models

Experimental and Numerical Study on the Improvement of Uniformity Flow in a Parallel Flow Channel

Use of Computational Fluid Dynamics (CFD) Tools for High-Performance Engine Tuning

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