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Project Description: I am looking for a COMSOL expert (chemical engineer / physicist) to simulate evaporation of liquid inside a vertical capillary tube using COMSOL Multiphysics (latest version preferred). Model Requirements: 2D transient model Geometry: Rectangle (0.025 mm width × 0.1 mm height) Vertical capillary tube Initially fully filled with water Room temperature conditions Evaporation driven by mass transfer (NOT temperature gradient) Outlet atmospheric humidity ≈ 50% Contact angle must form naturally (not fixed manually) Physics Expectations: Proper two-phase flow modeling (Level Set or Phase Field preferred) Surface tension effects included Transient moving interface (meniscus evolution) Realistic mass transfer modeling for evaporation Simplified or quasi-static approaches will not be accepted. Expected Deliverables: 1) Animation showing dynamic meniscus evolution - Time displayed - Volume fraction of liquid shown during animation 2) Plot: Time vs liquid volume fraction 3)CSV files: - Liquid volume vs time - Evaporated mass vs time 4) Screen recording of full COMSOL simulation process - Explanation document: - Physics used - Parameters selected - Reasoning behind modeling choices Part 2 Extension: Repeat the simulation replacing water with SDS solution at: - 0.1 wt% - 0.3 wt% Including comparison of results. Please only apply if you have strong experience in: COMSOL Multiphysics Multiphase flow Mass transfer modeling Moving boundary/interface problems When bidding, please briefly explain: Which physics interfaces you would use How you would implement evaporation Your experience with two-phase flow simulations
ID do Projeto: 40291229
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Hello, As a PhD Candidate in Chemical Engineering with over 8 years of experience in R&D and high-fidelity simulation, I have the advanced technical foundation required for this complex two-phase flow project. My doctoral research specifically involves mathematical modeling and CFD simulation using COMSOL Multiphysics. To ensure natural meniscus formation and accurate mass-transfer-driven evaporation, I will implement: * Physics Interfaces: I will utilize Laminar Two-Phase Flow with Phase Field (or Level Set) to naturally capture surface tension and dynamic interface evolution without manual constraints. * Evaporation Modeling: I will use the Transport of Concentrated Species interface to model evaporation as a mass-transfer operation driven by vapor pressure deficit and 50% outlet humidity. * Natural Contact Angle: I will apply a Wetted Wall boundary condition to allow the meniscus to form and move naturally as volume fractions change. * SDS Solutions (Part 2): I will adjust surface tension, density, and viscosity to reflect 0.1 wt% and 0.3 wt% SDS , providing a comparative analysis of surfactant influence on stability and evaporation curves.
€155 EUR em 40 dias
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8 freelancers estão ofertando em média €125 EUR for esse trabalho

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Expert Mechanical design Engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas: FEA analysis CFD analysis Thermal analysis Structural analysis HVAC and Heat load calculation We are proficient in using following software’s: AUTOCAD SOLIDWORKS ABAQUS ANSYS Fluent MATLAB/SIMULINK COMSOL Multiphysics CATIA FUSION360 We have good command over REPORT WRITING, we can show you many samples of our previous reports. We can discuss further details in the message box.
€160 EUR em 7 dias
5,7
5,7

Hello Dear I am available to do this task. I have 10 years of experience in design and simulation projects and research. Let me know if you are interested. Thanks
€150 EUR em 10 dias
3,8
3,8

Hello, I understand that you're seeking an expert in COMSOL Multiphysics to effectively simulate the evaporation of liquid within a vertical capillary tube. With my strong background in chemical engineering and extensive experience in two-phase flow and mass transfer modeling, I am confident in delivering a precise and comprehensive simulation that meets your rigorous expectations. I will employ the Level Set method to ensure accurate modeling of the transient meniscus evolution, incorporating surface tension effects and the ambient conditions you've outlined. I aim to produce dynamic animations along with detailed plots and CSV files capturing the evaporation process. The simulation for the SDS solution will follow, ensuring valuable comparisons. Next, I can begin the project immediately, typically requiring around 10 days for completion. Could you clarify the specific physics interfaces you expect to be used in the simulation?. Best regards, Muskan
€50 EUR em 2 dias
2,0
2,0

I am very interested in assisting with your COMSOL Multiphysics simulation of evaporation inside a vertical capillary tube. With experience in multiphase flow, mass transfer modeling, and moving interface problems, I can build a rigorous 2D transient model that captures realistic meniscus evolution and evaporation dynamics. I would implement the simulation using Two-Phase Flow (Level Set or Phase Field) coupled with Transport of Diluted Species to represent evaporation driven by mass transfer at the liquid–air interface, including surface tension and dynamic contact angle formation. The evaporation mechanism would be modeled through vapor diffusion and concentration gradients at the outlet boundary, maintaining the specified atmospheric humidity conditions. I will provide all requested outputs, including animated meniscus evolution, time-series plots, CSV datasets, and a full screen recording of the modeling workflow, along with documentation explaining the selected physics, parameters, and modeling rationale. For the extension phase, I can replicate the simulation using SDS solutions at 0.1 wt% and 0.3 wt%, adjusting surface tension and transport properties to compare their influence on evaporation dynamics. I would be happy to discuss the modeling approach in detail and ensure the final simulation meets rigorous physical and numerical standards.
€105 EUR em 3 dias
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Hi! I’m R, Braik (Doctor of Physics/Acoustic Metamaterials), PhD-level scientific editor experienced with university-level teaching and research experience, and I regularly prepare/assess scientific manuscripts (Q1) and conference papers, PhD physicist specialized in physics modeling with COMSOL Multiphysics, MATLAB/Simulink, and scientific data analysis. Teaching and research in energy systems and storage, used to rigorous validation and clear documentation. — R, Braik
€155 EUR em 7 dias
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Good day I trust you are well. Your project requires a detailed 2D transient COMSOL simulation of evaporation inside a vertical capillary tube, capturing the moving meniscus with natural contact angle formation. I propose using the Level Set interface to model the two-phase flow and surface tension, coupled with mass transfer for evaporation by implementing humidity-driven boundary conditions at the outlet. This ensures accurate transient meniscus evolution and realistic mass transfer without temperature gradients, aligning with your refusal of quasi-static models. I’ve handled similar COMSOL multiphysics challenges, including moving boundaries and evaporation effects, ensuring precise visualizations and data output. Tell me more about your project so I can help make it a success. Regards, Marissa
€120 EUR em 14 dias
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