Search
Search Results
-
Direct Numerical Simulation (DNS)
The spatial and temporal resolution requirements for the direct numerical simulation of a turbulent flow problem are derived. The computational cost...
-
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...
-
Direct Numerical Simulation
This chapter briefly introduces the Direct Numerical Simulation (DNS) technique, which directly simulates all scales of turbulent motion. DNS does...
-
Direct Numerical Simulation of Atomization Characteristics of ECN Spray-G Injector: In-Nozzle Fluid Flow and Breakup Processes
In order to sustain applications dealing with various liquid fuels in internal combustion engine (ICE), it is essential to make available prediction...
-
The Pseudo-Direct Numerical Simulation Method considered as a Reduced Order Model
The multiscale method called Pseudo-Direct Numerical Simulation (P-DNS) is presented as a Reduced Order Model (ROM) aiming to solve problems...
-
Investigating the use of 3-component-2-dimensional particle image velocimetry fields as inflow boundary condition for the direct numerical simulation of turbulent channel flow
Direct numerical simulation (DNS) of turbulent wall-bounded flows requires long streamwise computational domains to establish the correct spatial...
-
The P-DNS Method for Turbulent Fluid Flows: An Overview
An overview of the Pseudo-Direct Numerical Simulation (P-DNS) method is presented. This is a multi-scale method aiming at numerically solving the...
-
A Priori Direct Numerical Simulation Assessment of MILD Combustion Modelling in the Context of Reynolds Averaged Navier–Stokes Simulations
A priori Direct Numerical Simulation (DNS) assessment of mean reaction rate closures for reaction progress variable in the context of Reynolds...
-
Direct Numerical Simulation of Vortex Breakdown in Evaporating Dilute Sprays
The effects of different vortex breakdown states on the evaporation process characterizing air-acetone vapor swirling jets laden with liquid acetone...
-
Direct numerical simulation of supersonic boundary layer transition induced by gap-type roughness
The transition of the supersonic boundary layer induced by roughness is a highly intricate process. Gaining a profound understanding of the...
-
Carrier-Phase DNS of Ignition and Combustion of Iron Particles in a Turbulent Mixing Layer
Three-dimensional carrier-phase direct numerical simulations (CP-DNS) of reacting iron particle dust clouds in a turbulent mixing layer are...
-
Analysis of extreme wall-shear stress and vortical structure through direct numerical simulation of transitional flow in a stenosed carotid artery
Blood flow in human arteries is mostly laminar, but recent advances in measurement techniques and numerical simulations have given evidence of...
-
Direct numerical simulation of hypersonic boundary layer transition over a lifting-body model HyTRV
Direct numerical simulation (DNS) of transition over a hypersonic lifting body model HyTRV developed by China Aerodynamics Research and Development...
-
FLEW: A DNS Solver for Compressible Flows in Generalized Curvilinear Coordinates
We present FLEW, an in-house high-fidelity solver for direct numerical simulation (DNS) of turbulent compressible flows over arbitrary shaped...
-
Low Cost Recurrent and Asymptotically Unbiased Estimators of Statistical Uncertainty on Averaged Fields for DNS and LES
In the context of fundamental flow studies, experimental databases are expected to provide uncertainty margins on the measured quantities. With the...
-
Analysis of non-uniform laminar flow past a circular cylinder on the flow and sound field evolution using direct numerical simulation approach
This paper analyses the effects of a non-uniform laminar flow past a circular cylinder using the direct numerical simulation approach. Compared to...
-
Investigation of Entrainment and its Effect on Flame Stabilization in a Turbulent High Karlovitz Number Premixed Jet Flame using Direct Numerical Simulation
The stabilization of high Karlovitz number (Ka) jet flames is challenging due to the strong mean shear, and the role of entrainment on high Ka flame...
-
Direct Numerical Simulation of Turbulent Spray Autoignition of n-Heptane/Air Under Low Initial Air Temperature
2D-Direct numerical simulation (2D-DNS) with complex chemistry is carried out to study the spray autoignition process of n-heptane/air under low...
-
Direct Numerical Simulation of Flow and Heat Transfer in Complex Ducts
A series of Direct Numerical Simulations (DNS) at low Reynolds number is performed to investigate the flow and the heat transfer in ducts with...
-
Conservation of energy in the direct numerical simulation of interface-resolved multiphase flows
In the context of deformable bubbles, surface tension produces a dynamic exchange between kinetic and surface elastic energy. This exchange of energy...