Simulation of three-dimensional liquid sloshing flows using a strongly implicit calculation procedure

Chen, K. H.; Pletcher, Richard H.

doi:10.2514/6.1991-1661

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…Chen and Pletcher [8] investigated the use of Coupled Strongly Implicit Procedure (CSIP) to solve GDE (based on pseudo-compressibility method) for three-dimensional free surface unsteady incompressible flows. They simulated the sloshing motion in a spherical container undergoing motion characteristic of that experienced aboard a spin-stabilized satellite.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Study of Laminar and Intermittently Turbulent Flow Over a Flat Plate Using Pseudo-Compressibility Model

Srivastava

Eastridge

Taravella

et al. 2019

ASME 2019 Verification and Validation Symposium

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A study was conducted to investigate the characteristics of incompressible unsteady boundary layer flows (laminar and intermittently turbulent), numerically and experimentally. The main objective of the study is to validate and verify (V&V) the accuracy of the proposed pseudo-compressibility model in solving the incompressible Navier-Stokes (NS) equations. This approach will enable one to use a second order accurate (temporally and spatially) implicit finite-difference (FD) technique to solve NS equations (including RANS equations). Here, the proposed pseudo-compressibility model is used for laminar and intermittent turbulent flow simulations. Flow over a flat plate is chosen as the benchmark case for the validation of the proposed pseudo-compressibility model. An in-house code is developed to solve the boundary layer equations using an Alternating-Direction Explicit (ADE) FD technique. The boundary layer equations are discretized using explicit FD techniques which are second order accurate. The velocity field predicted by this code is compared to the one given by Blasius’ analytical solution. A second in-house code is also developed which adopts the proposed model of pseudo-compressibility to solve the incompressible NS equations. The two dimensional, unsteady conservation of mass and momentum equations are discretized using explicit finite-difference techniques. A standard K-ε closure model is used along with RANS equation to simulate turbulent flows. The primitive variables (velocity and pressure) predicted by this code are compared to the ones predicted by a commercial CFD package (Fluent). Once the method of pseudo-compressibility is validated, it is then implemented into another in-house computer code which employs implicit FD technique and Coupled Modified Strongly Implicit Procedure (CMSIP) to solve for the unknowns of the problem under study. The predictions based on the pseudo-compressibility model for laminar flow are validated using the results of the experiments in which Particle Image Velocimetry (PIV) technique was employed. The verification; that is, the numerical uncertainty estimation of the pseudo-compressible code was accomplished by using the Grid Convergence Index (GCI) method. The results of the present study indicate that the proposed pseudo-compressibility model is capable of predicting experimentally observed characteristics of the external flows successfully, and deviations between the predicted velocity magnitudes and experimentally measured velocities are within an acceptable range for laminar and intermittently turbulent flows conditions.

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Section: Introductionmentioning

confidence: 99%

A Numerical Study of Laminar and Intermittently Turbulent Flow Over a Flat Plate Using Pseudo-Compressibility Model

Srivastava

Eastridge

Taravella

et al. 2019

ASME 2019 Verification and Validation Symposium

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show abstract

“…CFD modeling of liquid sloshing was further investigated by Chen [27] [28] [29] [30] under supervision of Pletcher. Chen adopted Kassinos's general formulation of the governing equations of incompressible sloshing flow and developed a new numer ical method.…”

Section: Overview Of Research Historymentioning

confidence: 99%

Dynamic modeling of multibody flexible structures

Xu¹

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“…A' has been employed by Chen[17] [18] to calculate a variety of axisymmetric as well 35 three-dimensional sloshing motion of liquids inside partially filled spherical containers. These calculations included the start-up from different initial conditions, namely initially capped, as well as impulsively started container motions.…”

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confidence: 99%

Simulation of three-dimensional incompressible flows with free-surfaces including fluid-structure interaction and microgravity flows

Babu

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Decomposition 2.6.3 Planes of constant index sums 2.7 Smoothing 3. LIQUID SLOSHING INSIDE SPHERICAL CONTAINERS ... 3.1 Effects of vectorization 3.2 Code optimization 3.3 Contact line boundary condition 3.4 Free-surface motion: surface method 'B' 3.5 Results for the calculation of the orbital spin-up of a spherical tank. 67 4. VERIFICATION OF TRANSIENT ACCURACY OF THE SURFACE-FITTING APPROACH 87 4.1 The three-dimensional broken dam problem 87 4.2 Free-surface treatment: surface method 'C 88 4.3 Discretization of the momentum equations 95 4.4 Results for the three-dimensional broken dam calculations 99 iv 5. EFFECTS OF LOW GRAVITY 108 5.1 Discussion and Results 113 5.2 Calculations of zero gravity flows 118 6. FLUID-STRUCTURE INTERACTION 122

show abstract

Simulation of three-dimensional liquid sloshing flows using a strongly implicit calculation procedure

Cited by 5 publications

References 12 publications

A Numerical Study of Laminar and Intermittently Turbulent Flow Over a Flat Plate Using Pseudo-Compressibility Model

A Numerical Study of Laminar and Intermittently Turbulent Flow Over a Flat Plate Using Pseudo-Compressibility Model

Dynamic modeling of multibody flexible structures

Simulation of three-dimensional incompressible flows with free-surfaces including fluid-structure interaction and microgravity flows

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