نتایج جستجو برای: blasius equation

تعداد نتایج: 229911  

2017
G. Vinod S. K. Raju S. V. K. Varma

A theoretical investigation is performed for studying the flow of heat transfer characteristics of Sakiadis and Blasius flow of magnetohydrodynamic Maxwell fluid with thermal radiation. We also incorporated the Cattaneo-Chirstov heat flux model to control the heat transfer phenomena. Numerical solutions are carried out by using Shooting technique. The effects of various governing parameters on ...

Journal: :ماشین های کشاورزی 0
حامد رحمتی آیدنلو علی محمد نیکبخت

introduction increasing the area of absorber plate between the flowed air through the duct can be accomplished by corrugating the absorber plate or by using the artificial roughness underside of the absorber plate as the commercial methods for enhancing the thermohydraulic performance of the flat plate solar air heaters. evaluation of this requires the construction of separated solar air heater...

2005
Simone Zuccher Alessandro Bottaro Paolo Luchini

The three-dimensional, algebraically growing instability of a Blasius boundary layer is studied in the nonlinear regime, employing a nonparallel model based on boundary layer scalings. Adjoint-based optimization is used to determine the “optimal” steady leading-edge excitation that provides the maximum energy growth for a given initial energy. Like in the linear case, the largest transient grow...

2003
Luca Brandt

Experimental findings show that transition from laminar to turbulent flow may occur also if the exponentially growing perturbations, eigensolutions to the linearised disturbance equations, are damped. An alternative non-modal growth mechanism has been recently identified, also based on the linear approximation. This consists of the transient growth of streamwise elongated disturbances, with reg...

Journal: :Physics of Fluids 2021

A temporal linear stability analysis of the asymptotic suction boundary layer is presented. For this, Orr–Sommerfeld equation solved in terms generalized hypergeometric functions. Together with corresponding conditions, an algebraic eigenvalue problem formulated. Thereof we derive continuous spectrum yielding a rather distinct if, for example, compared to one from Blasius solution. second key r...

Journal: :J. Applied Mathematics 2011
Beong In Yun

Beong In Yun Department of Informatics and Statistics, Kunsan National University, Kunsan 573-701, Republic of korea Correspondence should be addressed to Beong In Yun, [email protected] Received 7 April 2011; Revised 31 May 2011; Accepted 29 June 2011 Academic Editor: Ch Tsitouras Copyright q 2011 Beong In Yun. This is an open access article distributed under the Creative Commons Attribution...

Journal: :European neurology 2008
J M S Pearce

A panel illustrating spinal cord injury in The Dying Lioness in the British Museum dates to 650 BC. This paper outlines the subsequent progression of knowledge of the anatomy of the spinal cord. The animal dissections of Galen are considered because his deductions persisted through the Dark Ages until the late 18th century. Anatomy advanced gradually to yield discoveries of the complex tracts a...

Journal: :Physics of Fluids 2021

One of the simplest problems involving external vorticity in boundary layer flows is flow over a semi-infinite plate under stream uniform shear. We study transient growth phenomenon this to investigate role freestream shear on energy amplification and analyze differences with Blasius flow. The initial optimal disturbance that triggers maximum found be streamwise vortices, as other flows. Compar...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور مرکز - دانشکده علوم 1392

در این رساله، وجود و چندگانگی جواب های مثبت دسته ای از معادلات و دستگاه معادلات دیفرانسیل با مشتقات جزئی غیرخطی با شرط های مرزی همگن دیریکله را بر اساس روش جواب های پایینی-بالایی در دو مفهوم کلاسیک و ضعیف مورد بحث قرار می دهیم. فرض کنید $omega$ دامنه ای کراندار در $mathbb{r}^n$ با مرز هموار $partial omega$ است. ابتدا، وجود جواب های مثبت مسائل نیمه مثبت گون نامتناهی [ -delta u=-a ...

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