Computer modeling techniques for flapping-wing aerodynamics of a locust

Takizawa, Kenji; Henicke, Bradley; Puntel, Anthony; Kostov, Nikolay; Tezduyar, Tayfun E.

doi:10.1016/j.compfluid.2012.11.008

Cited by 83 publications

(48 citation statements)

References 102 publications

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“…The sliding-interface technique was originally developed in [23] in the context of Isogeometric Analysis (IGA) [39,45], and successfully applied to simulate offshore wind turbines in [24,43,51,52], hydraulic arresting gears in [90], and kayak propulsion in [91]. The sliding-interface formulation was recently extended to the space-time (ST) VMS method [70,72,[75][76][77][78]80], and the extension is called the "ST Slip Interface (ST-SI)" method [79,82,84,85].…”

Section: Discretization Methodsmentioning

confidence: 99%

Free-surface flow modeling and simulation of horizontal-axis tidal-stream turbines

Yan¹,

Deng²,

Korobenko³

et al. 2017

Computers & Fluids

123

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A computational free-surface flow framework that enables 3D, time-dependent simulation of horizontal-axis tidal-stream turbines (HATTs) is presented and deployed using a complexgeometry HATT. Free-surface flow simulations using the proposed framework, without any empiricism, are able to accurately capture the effect of the free surface on the hydrodynamic performance of the turbine, as demonstrated through excellent agreement with the experimental data. To carry out the free-surface computations, we have developed a novel level-set redistancing procedure compatible with the sliding-interface technique used for handling the rotor-stator interaction in the HATT full-machine simulations. To illustrate the versatility of the proposed approach, additional computations are carried out where the HATT is subjected to wave action.

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Section: Discretization Methodsmentioning

confidence: 99%

Free-surface flow modeling and simulation of horizontal-axis tidal-stream turbines

Yan¹,

Deng²,

Korobenko³

et al. 2017

Computers & Fluids

123

View full text Add to dashboard Cite

show abstract

“…Some examples of these applications are animal swimming and flight [13,22,[60][61][62][63][64][65][66], flag flapping [28], spacecraft parachutes [67][68][69][70][71][72][73][74][75][76][77], cardiovascular fluid mechanics [78][79][80][81][82], wind-turbine aerodynamics [83][84][85][86], and non-Newtonian flow [87].…”

Section: Methodsmentioning

confidence: 99%

A numerical study of linear and nonlinear kinematic models in fish swimming with the DSD/SST method

Tian

2014

Comput Mech

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Flow over two fish (modeled by two flexible plates) in tandem arrangement is investigated by solving the incompressible Navier-Stokes equations numerically with the DSD/SST method to understand the differences between the geometrically linear and nonlinear models. In the simulation, the motions of the plates are reconstructed from a vertically flowing soap film tunnel experiment with linear and nonlinear kinematic models. Based on the simulations, the drag, lift, power consumption, vorticity and pressure fields are discussed in detail. It is found that the linear and nonlinear models are able to reasonably predict the forces and power consumption of a single plate in flow. Moreover, if multiple plates are considered, these two models yield totally different results, which implies that the nonlinear model should be used. The results presented in this work provide a guideline for future studies in fish swimming.

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“…The slidinginterface formulation may be interpreted as a Discontinuous Galerkin method [61] , where the basis functions are continuous inside the interior of subdomains but not at the sliding interface. In the incompressible-flow regime, the sliding-interface formulation was recently extended to the space-time (ST) variational multiscale (VMS) method [62][63][64][65][66][67][68][69] , and the extension is called the "ST Slip Interface (ST-SI)" method [70][71][72][73][74][75][76] . In this work, we develop a compressible-flow counterpart of the sliding-interface formulation.…”

Section: Introductionmentioning

confidence: 99%

Compressible flows on moving domains: Stabilized methods, weakly enforced essential boundary conditions, sliding interfaces, and application to gas-turbine modeling

Moutsanidis

Kamensky

et al. 2017

Computers & Fluids

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A novel stabilized formulation for 3D compressible viscous flows on moving domains is developed. New weak imposition of essential boundary conditions and sliding-interface formulations are also proposed in the context of moving-domain compressible flows. The new formulation is successfully tested on a set of examples spanning a wide range of Reynolds and Mach numbers showing its superior robustness. Experimental validation of the new formulation is also carried out with good success. In addition, the formulation is applied to simulate flow inside a gas turbine stage, illustrating its potential to support design of real engineering systems through high-fidelity aerodynamic analysis.

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Computer modeling techniques for flapping-wing aerodynamics of a locust

Cited by 83 publications

References 102 publications

Free-surface flow modeling and simulation of horizontal-axis tidal-stream turbines

Free-surface flow modeling and simulation of horizontal-axis tidal-stream turbines

A numerical study of linear and nonlinear kinematic models in fish swimming with the DSD/SST method

Compressible flows on moving domains: Stabilized methods, weakly enforced essential boundary conditions, sliding interfaces, and application to gas-turbine modeling

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