Ashvinkumar Chaudhari
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View article: A Lightweight Dynamical Model For Packed Bed Thermal Energy Storages
A Lightweight Dynamical Model For Packed Bed Thermal Energy Storages Open
We introduce a computationally simple model for predicting the dynamical response of sensible heat packed bed thermal energy storages (TES). The proposed system of differential-algebraic equations arises from thermodynamic power balance co…
View article: An Open-Source Framework For CFD-Based Digital Twins: A Case Study On Storm Water Management
An Open-Source Framework For CFD-Based Digital Twins: A Case Study On Storm Water Management Open
Digital Twins (DTs) are increasingly applied for optimization of operations in logistics, healthcare, smart cities, and beyond. However, implementing high-fidelity DTs remains challenging in computationally intensive domains such as Comput…
View article: Assessing The Effect Of Substrate Porosity Layering On The Water Detention Efficiency Of A Bioretention Cell: A CFD Study
Assessing The Effect Of Substrate Porosity Layering On The Water Detention Efficiency Of A Bioretention Cell: A CFD Study Open
Urbanization has drastically increased sealed surfaces, leading to higher stormwater runoff and subsequent associated risks such as flooding and water quality degradation. Nature-based solutions such as bioretention cells are a sustainable…
View article: CFD Analysis of Flow Characteristics and Diagnostics of Leaks in Water Pipelines
CFD Analysis of Flow Characteristics and Diagnostics of Leaks in Water Pipelines Open
This study utilizes Computational Fluid Dynamics (CFD) to generate pressure and flow rate values for the analysis of flow characteristics and the diagnosis of leaks in inclined pipelines. The Semi-Implicit Method for Pressure-Linked Equati…
View article: Impact of Forest Density on Atmospheric Boundary Layer Flow and Turbulence for Wind Energy Applications
Impact of Forest Density on Atmospheric Boundary Layer Flow and Turbulence for Wind Energy Applications Open
Nowadays, it is common to build a wind farm in forest area as wind-energy production is growing rapidly. However, surrounding forests change the local wind conditions drastically and thus there is a need to understand the interaction of lo…
View article: Analysis of viscosity behaviour of shear-thinning hydrogels in 3d-printing nozzles
Analysis of viscosity behaviour of shear-thinning hydrogels in 3d-printing nozzles Open
Hydrogels with shear-thinning properties are being investigated for use in biomedical applications such as drug delivery, tissue engineering, and 3D bioprinting. For 3D bioprinting, it is very important not to change materials such as the …
View article: Assessing The Impact Of Forests On Local Wind Conditions In Archipelagos: A CFD Study
Assessing The Impact Of Forests On Local Wind Conditions In Archipelagos: A CFD Study Open
Ship fairways in archipelagos pass close to small islands with complex terrain and forests. In such areas, local wind conditions deviate from regional forecasts, creating a complex and challenging environment when navigating large vessels.…
View article: Numerical Investigation on the Effects of Forest Heterogeneity on Wind-Turbine Wake
Numerical Investigation on the Effects of Forest Heterogeneity on Wind-Turbine Wake Open
This work aims at investigating the effects of forest heterogeneity on a wind-turbine wake under a neutrally stratified condition. Three types of forests, homogeneous (idealized), a real forest having natural heterogeneity, and an idealize…
View article: Performance and wake comparison of horizontal and vertical axis wind turbines under varying surface roughness conditions
Performance and wake comparison of horizontal and vertical axis wind turbines under varying surface roughness conditions Open
A numerical study of both a horizontal axis wind turbine (HAWT) and a vertical axis wind turbine (VAWT) with similar size and power rating is presented. These large scale turbines have been tested when operating stand‐alone at their optima…
View article: Turbulent Inlet boundary conditions for large eddy simulation: an urban wind energy test-case
Turbulent Inlet boundary conditions for large eddy simulation: an urban wind energy test-case Open
This paper reports on an investigation on numerical techniques to include turbulence at the inlet of Large Eddy Simulations (LES). Computational Fluid Dynamics (CFD) is promising as a technique to support wind tunnel results and provide a …
View article: Numerical Study of the Impact of Atmospheric Stratification on a Wind-Turbine Performance
Numerical Study of the Impact of Atmospheric Stratification on a Wind-Turbine Performance Open
This paper is aimed to obtain a better understanding of how a stably stratified atmospheric condition involving low-level jet, in comparison to neutral condition, affects to a wind-turbine performance. In this work, large-eddy simulation a…
View article: Effects of the canopy created velocity inflection in the wake development in a large wind turbine array
Effects of the canopy created velocity inflection in the wake development in a large wind turbine array Open
Large Eddy Simulations (LES) are carried out using OpenFOAM to investigate the canopy created velocity inflection in the wake development of a large wind turbine array. Simulations are performed for two cases with and without forest separa…
View article: Numerical study of how stable stratification affects turbulence instabilities above a forest cover: application to wind energy
Numerical study of how stable stratification affects turbulence instabilities above a forest cover: application to wind energy Open
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View article: Full-Scale Experimental Validation of Large-Eddy Simulation of Wind Flows over Complex Terrain: The Bolund Hill
Full-Scale Experimental Validation of Large-Eddy Simulation of Wind Flows over Complex Terrain: The Bolund Hill Open
Numerical simulation of local atmospheric flows around a complex topography is important for many wind energy applications, as it can help in locating and optimizing wind farms. The aim of this paper is to simulate the atmospheric flows ov…
View article: Numerical Simulation of Bubble Coalescence and Break-Up in Multinozzle Jet Ejector
Numerical Simulation of Bubble Coalescence and Break-Up in Multinozzle Jet Ejector Open
Designing the jet ejector optimally is a challenging task and has a great impact on industrial applications. Three different sets of nozzles (namely, 1, 3, and 5) inside the jet ejector are compared in this study by using numerical simulat…