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Computational and Experimental Analysis of Flow Field in the Diffusers of Centrifugal Compressors
(2004-11-26)
Centrifugal compressors are widely used for example in process industry, oil and gas industry, in small gas turbines and turbochargers. In order to achieve lower consumption of energy and operation costs the efficiency of ...
Hydrodynamics and mass transfer in airlift bioreactors: experimental and numerical simulation analysis
(Lappeenranta University of Technology, 2017-12-19)
Airlift bioreactors are widely used in industrial applications such as wastewater treatment, gas decontamination and other biochemical processes, and such systems have generated increasing academic and industrial interest. ...
Analysis and validation of space averaged drag model for numerical simulations of gas-solid flows in fluidized beds
(Lappeenranta University of Technology, 2012-12-13)
This thesis presents an approach for formulating and validating a space averaged drag
model for coarse mesh simulations of gas-solid flows in fluidized beds using the two-fluid
model.
Proper modeling for fluid dynamics ...
Modeling the transport phenomena within arterial wall: porous media approach
(Lappeenranta University of Technology, 2008-10-03)
The transport of macromolecules, such as low-density lipoprotein (LDL), and their accumulation in the layers of the arterial wall play a critical role in the creation and development of atherosclerosis. Atherosclerosis is ...
Development of a process for the direct synthesis of hydrogen peroxide in a novel microstructured reactor
(Lappeenranta University of Technology, 2013-11-29)
Microreactors have proven to be versatile tools for process intensification. Over recent
decades, they have increasingly been used for product and process development in chemical
industries. Enhanced heat and mass transfer ...
Control and Simulation of Batch Crystallization
(2005)
Concerning process control of batch cooling crystallization the present work focused on the cooling profile and seeding technique. Secondly, the influence of additives on batch-wise precipitation process was investigated. ...
Computational modeling of stented coronary arteries
(Lappeenranta University of Technology, 2014-11-26)
The application of computational fluid dynamics (CFD) and finite element analysis (FEA)
has been growing rapidly in the various fields of science and technology. One of the areas
of interest is in biomedical engineering. ...
Application and development of numerical methods for the modelling of innovative gas cooled fission reactors
(Lappeenranta University of Technology, 2014-12-05)
Innovative gas cooled reactors, such as the pebble bed reactor (PBR) and the gas
cooled fast reactor (GFR) offer higher efficiency and new application areas for nuclear
energy. Numerical methods were applied and developed ...
Computational Analysis and Optimization of Real Gas Flow In Small Centrifugal Compressors
(2006-12-12)
Small centrifugal compressors are more and more widely used in many industrialsystems because of their higher efficiency and better off-design performance comparing to piston and scroll compressors as while as higher work ...
Experimental and Numerical Analysis of Different Volutes in a Centrifugal Compressor
(2001-12-12)
In a centrifugal compressor the flow around the diffuser is collected and led to the pipe system by a spiral-shaped volute. In this study a single-stage centrifugal compressor with three different volutes is investigated. ...