Modeling and simulation of droplet wettability using multiphase Lattice Boltzmann method (LBM)

Yuana, Kumara Ari; Budiana, Eko Prasetya; Deendarlianto,; Indarto, Indarto

doi:10.1063/1.5139169

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…Penggunaan menggunakan metode Latticce Boltzmann (LBM) dapat memberikan efek sukses dalam simulasi droplet melayang (floating droplet) dan droplet yang menyentuh pada permukaan alat dengan derajat kebasahan (wettability). [15,16] Pada model dan simulasi pengembangan droplet dengan menggunakan metode LBM multi fase, parameter penting yang selalu didapatkan adalah arus semu maksimum (maximum spurious currents) yang menetukan stabilitas komputasi [17]. Perbedaan kondisi suhu mengikuti aturan termodinamika sesuai persamaan keadaan (equation of state/EOS), dan menghasilkan besar arus semu yang berbeda.…”

Section: Tinjauan Pustakaunclassified

Modeling Matematis Dan Simulasi Droplet Untuk Pendinginan Alat-Alat Teknologi Informasi Dan Komputer Dengan Metode Lattice-Boltzmann

Nurastuti¹,

Yuana²

2021

JINTEKS

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Abstrak : Kebutuhan inovasi skema pendinginan untuk pemeliharaan perangkat elektronik dengan suhu aman dibawah batas yang telah ditentukan oleh batasan material dan kendala realibilitas yang terkait pada miniaturisasi microchip yang agresif pada komponen elektronik. Pergeseran dari ketergantungan pada sistem berpendingin kipas menjadi ke skema pendinginan yang memanfaatkan pendingin cairan dielektrik menggunakan berbagai skema pendinginan fase tunggal. Perekayasa (engineer) sistem pendingin memusatkan perhatian pada skema pendinginan dua fase, untuk memanfaatkan kedua system pendingin. Sifat yang harus dimiliki perekayasa sistem pendingin ini yaitu konveksi fluida dan panas laten untuk memindahkan jumlah kalor yang jauh lebih besar dari pada skema fase tunggal, sambil mempertahankan suhu perangkat yang lebih rendah. Beberapa skema pendingin cairan dua fase telah direkomendasikan untuk menghilangkan fluks kalor tinggi dari perangkat yang digunakan diaplikasi. Momentum droplet memungkinkan cairan menembus penghalang uap yang dibuat oleh gelembung nukleasi dan secara lebih efektif mengisi kembali permukaan, keduanya sangat bermanfaat untuk pendinginan fluks tinggi. Pada model dan simulasi pengembangan droplet menggunakan metode LBM multi fase, parameter penting yang selalu didapatkan adalah arus semu maksimum (maximum spurious currents) yang menetukan stabilitas komputasi. Kata kunci : Modeling Matematis, Simulasi Droplet, Metode Latice-Boltzman Abstract: The need for innovative cooling schemes for maintaining electronic devices with safe temperatures below predetermined limits by material limitations and reliability constraints associated with aggressive microchip miniaturization of electronic components. Shifting from reliance on fan-cooled systems to cooling schemes that utilize dielectric liquid cooling using a variety of single-phase cooling schemes. The cooling system engineer focuses on two-phase cooling schemes, to take advantage of both cooling systems. Properties that these cooling system engineers must possess are fluid convection and latent heat to transfer a much greater amount of heat than a single-phase scheme, while maintaining a lower device temperature. Several two-phase liquid cooling schemes have been recommended to remove the high heat flux from the apparatus used in the application. The droplet momentum allows the liquid to penetrate the vapor barrier created by the nucleation bubbles and more effectively replenish the surface, both of which are very beneficial for high flux cooling. In droplet development models and simulations using the multi-phase LBM method, an important parameter that is always obtained is the maximum spurious currents which determine the computational stability. Keywords: Mathematical Modeling, Droplet Simulation, Latice-Boltzman Method

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Section: Tinjauan Pustakaunclassified

Modeling Matematis Dan Simulasi Droplet Untuk Pendinginan Alat-Alat Teknologi Informasi Dan Komputer Dengan Metode Lattice-Boltzmann

Nurastuti¹,

Yuana²

2021

JINTEKS

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“…∇ψ in Equation (1) plays a crucial role in phase separation and the determination of intramolecular interactions between non-ideal fluids. This function can be calculated using the Carnahan-Starling equation [38][39][40][41].…”

Section: Numerical Approachmentioning

confidence: 99%

Analyzing Impacts of Interfacial Instabilities on the Sweeping Power of Newtonian Fluids to Immiscibly Displace Power-Law Materials

Esmaeilpour

Korzani

2021

Processes

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Injection of Newtonian fluids to displace pseudoplastic and dilatant fluids, governed by the power-law viscosity relationship, is common in many industrial processes. In these applications, changing the viscosity of the displaced fluid through velocity alteration can regulate interfacial instabilities, displacement efficiency, the thickness of the static wall layer, and the injected fluid’s tendency to move toward particular parts of the channel. The dynamic behavior of the fluid–fluid interface in the case of immiscibility is highly complicated and complex. In this study, a code was developed that utilizes a multi-component model of the lattice Boltzmann method to decrease the computational cost and accurately model these problems. Accordingly, a 2D inclined channel, filled with a stagnant incompressible Newtonian fluid in the initial section followed by a power-law material, was modeled for numerous scenarios. In conclusion, the results indicate that reducing the power-law index can regulate interfacial instabilities leading to dynamic deformation of static wall layers at the top and the bottom of the channel. However, it does not guarantee a reduction in the thickness of these layers, which is crucial to improve displacement efficiency. The impacts of the compatibility factor and power-law index variations on the filling pattern and finger structure were intensively evaluated.

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Transient Lattice Boltzmann Numerical Simulation during the Dewetting of Liquid Droplet on a Flat Surface

et al. 2023

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Modeling and simulation of droplet wettability using multiphase Lattice Boltzmann method (LBM)

Cited by 3 publications

References 10 publications

Modeling Matematis Dan Simulasi Droplet Untuk Pendinginan Alat-Alat Teknologi Informasi Dan Komputer Dengan Metode Lattice-Boltzmann

Modeling Matematis Dan Simulasi Droplet Untuk Pendinginan Alat-Alat Teknologi Informasi Dan Komputer Dengan Metode Lattice-Boltzmann

Analyzing Impacts of Interfacial Instabilities on the Sweeping Power of Newtonian Fluids to Immiscibly Displace Power-Law Materials

Transient Lattice Boltzmann Numerical Simulation during the Dewetting of Liquid Droplet on a Flat Surface

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