Results 111 to 120 of about 267,200 (366)

CFD predicted pH gradients in lactic acid bacteria cultivations

open access: yesBiotechnology and Bioengineering, 2018
The formation of pH gradients in a 700 L batch fermentation of Streptococcus thermophilus was studied using multi‐position pH measurements and computational fluid dynamics (CFD) modeling. To this end, a dynamic, kinetic model of S.
R. Spann   +10 more
semanticscholar   +1 more source

Sustainable Thermal Solutions: Enhancing Heat Transfer with Turbulators and Nanofluids

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Nanofluids, which are nanoparticle suspensions in base fluid, facilitate heat transmission due to their improved thermal conductivity. Turbulators, which are inserts into fluid flow channels, disturb the flow, increasing turbulence and hence the heat transfer rate.
Zafar Said   +9 more
wiley   +1 more source

Scaling‐down biopharmaceutical production processes via a single multi‐compartment bioreactor (SMCB)

open access: yesEngineering in Life Sciences, Volume 23, Issue 1, January 2023., 2023
Abstract Biopharmaceutical production processes often use mammalian cells in bioreactors larger than 10,000 L, where gradients of shear stress, substrate, dissolved oxygen and carbon dioxide, and pH are likely to occur. As former tissue cells, producer cell lines such as Chinese hamster ovary (CHO) cells sensitively respond to these mixing ...
Lena Gaugler   +5 more
wiley   +1 more source

The Role of Porous Carbon Inserts on the Performance of Polymer Electrolyte Membrane Fuel Cells: A Parametric Numerical Study

open access: yesEnergy Technology, Volume 10, Issue 12, December 2022., 2022
A computational fluid dynamic study is conducted to investigate the effects of using porous carbon inserts (PCIs) on water management and the performance of proton exchange membrane fuel cells. The results show that employing PCI leads to a more efficient water removal from the fuel cell and higher oxygen transport throughout the cell, which ...
Abbas Moradi Bilondi   +4 more
wiley   +1 more source

Design Method for Contra-Rotating Propellers for High-Speed Crafts: Revising the Original Lerbs Theory in a Modern Perspective

open access: yesInternational Journal of Rotating Machinery, 2012
The main theoretical and numerical aspects of a design method for optimum contrar-rotating (CR) propellers for fast marine crafts are presented. We propose a reformulated version of a well-known design theory for contra-rotating propellers, by taking ...
Stefano Brizzolara   +2 more
doaj   +1 more source

Automatic parametrization and mesh deformation for CFD optimization [PDF]

open access: yesarXiv, 2013
We present an automatic and memory efficient methods of morphing-based parametrization of shapes in CFD optimization. Method is based on Kriging and Radial Basis Function interpolation methods.
arxiv  

Computational Fluid Dynamics (CFD) Modelling and Application for Sterilization of Foods: A Review

open access: yes, 2018
Computational fluid dynamics (CFD) is a powerful tool to model fluid flow motions for momentum, mass and energy transfer. CFD has been widely used to simulate the flow pattern and temperature distribution during the thermal processing of foods.
H. Park, W. Yoon
semanticscholar   +1 more source

Magnetically Induced Catalysis: Definition, Advances, and Potential

open access: yesAngewandte Chemie, EarlyView.
In this scientific perspective, we intend to provide a coherent framework for the field of magnetocatalysis by highlighting opportunities associated with the use of magnetic fields to activate catalysts. A particular focus will be placed on magnetically induced catalysis, providing an overview on current advances and identifying scientific and ...
A. Bordet, W. Leitner, B. Chaudret
wiley   +2 more sources

Numerical Investigation of Nanofluid Forced Convection in Channels with Discrete Heat Sources

open access: yesJournal of Applied Mathematics, 2012
Numerical simulation is performed to investigate the laminar force convection of Al2O3/water nanofluid in a flow channel with discrete heat sources. The heat sources are placed on the bottom wall of channel which produce much thermal energy that must be ...
Payam Rahim Mashaei   +2 more
doaj   +1 more source

Exploring the efficacy of natural convection in a cabinet type solar dryer for drying gooseberries: An experimental analysis

open access: yesJournal of Agriculture and Food Research, 2023
A study was conducted to evaluate the efficiency of a cabinet-type solar dryer with naturally convection drying specifically for Indian gooseberries. One notable advantage of utilizing a passive solar dryer is its reliance on natural energy sources, such
Chhotelal Prajapati, Tanuja Sheorey
doaj  

Home - About - Disclaimer - Privacy