Search
Search Results
-
Turbulent Wedge Modeling in Local Correlation-Based Transition Models
This article presents a novel approach to include turbulent wedges in local correlation-based...
-
Laminar-Turbulent Transition
This chapter presents the basics for understanding the laminar-turbulent transition and prepares the reader for understanding of the physics of...
-
Direct-Numerical Simulation with the Stability Theory for Turbulent Transition in Hypersonic Boundary Layer
Laminar-to-turbulent transition in hypersonic boundary layer is numerically investigated using the direct-numerical simulation (DNS) method combined...
-
Turbulent Transition Control Using Porous Surfaces in Hypersonic Boundary Layer
Hypersonic boundary layer on porous surfaces is simulated to investigate the effect of porous surfaces on the transition process. The fundamental...
-
Turbulent flow across a clearing-forest transition: a large eddy simulation study
Forest fragmentation significantly impacts scalar concentration and momentum fluxes, introducing heterogeneity influencing mass, energy, and...
-
Constrained large-eddy simulation of laminar-turbulent transition in compressible channel flows
An improved approach for constrained large-eddy simulations (CLES) of wall-bounded compressible transitional flows is proposed by introducing an...
-
An Algebraic LCTM Model for Laminar–Turbulent Transition Prediction
A new algebraic RANS model for laminar–turbulent transition will be presented. The model follows the Local-Correlation-based Transition Modeling...
-
Methods for Prediction of Turbulent Transition
An important problem encountered in engineering and design is the prediction of position of turbulent transition, such as airplane and...
-
Turbulent Transition Through Velocity Discontinuity
The mechanism of turbulent transition is uncovered that turbulent transition is induced by the discontinuity of the streamwise velocity. These...
-
Numerical Investigation of Laminar to Turbulent Boundary Layer Transition Over Airship Envelopes
The shape of a conventional airship’s envelope is usually an axisymmetric body of revolution. Previous numerical and experimental studies have...
-
Delay of laminar–turbulent transition by counter-rotating cylindrical roughness elements in a laminar flat plate boundary layer
AbstractDelaying laminar–turbulent transition in boundary layers is of great interest since the skin-friction coefficient can be reduced by up to one...
-
Study of Applicability of Turbulence Models for Calculations of a Microturbine Engine Centrifugal Compressor under Laminar-Turbulent Transition Conditions
AbstractThe influence of the selected mathematical model in simulation of the compressor flow passage of the microturbine engine, is studied. The...
-
Scaling of Disturbance for Turbulent Transition and Turbulence
Using the principle of the energy gradient theory, the scaling of the dimensionless amplitude of normal disturbance of streamwise velocity at...
-
Bypass Laminar-Turbulent Transition on a Flat Plate of Organic Fluids Using DNS Method
This work aims to investigate the impact of non-ideal gas effects on turbulent boundary layers, by applying DNS to the by-pass transition for three...
-
Progress in physical modeling of compressible wall-bounded turbulent flows
Understanding, modeling and control of the high-speed wall-bounded transition and turbulence not only receive wide academic interests but also are...
-
Contribution of Vortices to Laminar-Turbulent Transition in a Boundary Layer Disturbed by a Roughness Element
This paper presents analyses of the flow topology around and behind a roughness element in a laminar flat plate boundary layer. Hydrogen-bubble and...
-
Influence of deep gaps on laminar–turbulent transition in two-dimensional boundary layers at subsonic Mach numbers
Systematic experimental investigations on the influence of deep gaps on the location of laminar–turbulent transition are reported. The tests were...
-
Experimental study of transition in dynamical states of thermo-acoustic oscillations in a turbulent bluff body combustor
This study investigates the shift in dynamical states of the thermo-acoustic oscillations for the turbulent syngas combustor having a bluff body for...
-
Turbulent Flow
In the previous chapter with the help of Reynolds experiment, we explained the types of flow i.e., laminar or turbulent. In practical application...
-
Synchronization-based model for turbulent thermoacoustic systems
We present a phenomenological reduced-order model to capture the transition to thermoacoustic instability in turbulent combustors. Based on the...
