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Foreword: Flow Numerical Simulations in Textile Technologies
Issue:
Volume 3, Issue 1-1, January 2015
Pages:
1-4
Received:
9 September 2014
Accepted:
12 September 2014
Published:
17 October 2014
Abstract: The monograph presents the overview of typical numerical flow simulations, solved in VÚTS – Center for Research in Machinery in Liberec (former Research Institute of Textile Machines) in the area of fluid mechanics for various technical applications. First of all in textile technologies, as for instance air jet weaving, spinning, drying, permeability, nonwovens etc. System is completed by auxiliary technologies as for instance air conditioning, exhausting, pneumatic transport etc.
Abstract: The monograph presents the overview of typical numerical flow simulations, solved in VÚTS – Center for Research in Machinery in Liberec (former Research Institute of Textile Machines) in the area of fluid mechanics for various technical applications. First of all in textile technologies, as for instance air jet weaving, spinning, drying, permeabili...
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Main Weaving Nozzles - Ejectors
Karel Adamek,
Jan Kolar,
Jaroslav Pelant,
Jan Simak,
Simone Gramsch
Issue:
Volume 3, Issue 1-1, January 2015
Pages:
5-12
Received:
9 September 2014
Accepted:
12 September 2014
Published:
17 October 2014
Abstract: The paper deals both with numerical flow simulations and experiments in ejectors, used here first of all as main weaving nozzles, further as a source of air suction, etc. The problem of high noise level of expanded air flow is discussed, too.
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Relay Nozzles and Weaving Reed
Karel Adamek,
Petr Karel,
Jan Kolar,
Slavomir Jirku,
Vaclav Kopecky,
Jaroslav Pelant
Issue:
Volume 3, Issue 1-1, January 2015
Pages:
13-21
Received:
9 September 2014
Accepted:
12 September 2014
Published:
17 October 2014
Abstract: The contribution describes the results of numerical flow simulations and experiments with so called auxiliary (relay) nozzles, used on powerful air jet weaving looms, further with complicated air flows interactions with the complicated reed wall, observing the nozzle setting toward the reed wall, the manufacturing of elements of the reed.
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Air Conditioning and Application
Karel Adamek,
Jan Kolar,
Pavel Peukert,
Marek Kaspar
Issue:
Volume 3, Issue 1-1, January 2015
Pages:
22-27
Received:
9 September 2014
Accepted:
12 September 2014
Published:
17 October 2014
Abstract: The contribution summarizes some interesting results received at flow numerical simulations in various parts of systems for air conditioning, as for instance heating and transporting, used – not only - in various textile technologies. The correct air temperature and humidity are necessary conditions for reliable and economic treatment of textile materials in general. Actual use of renewable energy is discussed, too.
Abstract: The contribution summarizes some interesting results received at flow numerical simulations in various parts of systems for air conditioning, as for instance heating and transporting, used – not only - in various textile technologies. The correct air temperature and humidity are necessary conditions for reliable and economic treatment of textile ma...
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Wall Flows and their Applications
Karel Adamek,
Dusan Cejka,
Zdeněk Mecl,
Jaroslav Pelant
Issue:
Volume 3, Issue 1-1, January 2015
Pages:
28-32
Received:
9 September 2014
Accepted:
12 September 2014
Published:
17 October 2014
Abstract: So-called wall flows are usable in many technical applications as a simple and reliable device for exhausting of light materials as dust, smoke, hot air, etc. In another cases, such flows can make troubles by treatment of light materials as fibers, etc. and it is necessary to suppress the wall effects by suitable design adjustments. But there is described a useful effect of wall flows on quality of fibrous product, too.
Abstract: So-called wall flows are usable in many technical applications as a simple and reliable device for exhausting of light materials as dust, smoke, hot air, etc. In another cases, such flows can make troubles by treatment of light materials as fibers, etc. and it is necessary to suppress the wall effects by suitable design adjustments. But there is de...
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Exhausting, Pneumatic Transport
Karel Adamek,
Jan Kolar,
Pavel Peukert,
Martin Pustka,
Petr Pulpan,
Radim Foldyna,
Petr Bilek,
Ales Prusek
Issue:
Volume 3, Issue 1-1, January 2015
Pages:
33-39
Received:
9 September 2014
Accepted:
12 September 2014
Published:
17 October 2014
Abstract: The contribution describes frequent functional problems of exhausting devices, caused by no observing of essential rules of fluid mechanics. For instance, due to the unbalanced tubing system of several branches the medium flows in individual connections and their relevant energy transports are not corresponding to the designed one, or the diffuser of very large enlargement leads to the flow separation, increased noise level etc.
Abstract: The contribution describes frequent functional problems of exhausting devices, caused by no observing of essential rules of fluid mechanics. For instance, due to the unbalanced tubing system of several branches the medium flows in individual connections and their relevant energy transports are not corresponding to the designed one, or the diffuser ...
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Air Permeability, Drying, Blowing
Karel Adamek,
Jaroslav Fabera,
Milan Stejskal,
Antonín Havelka,
Stanislav Franc
Issue:
Volume 3, Issue 1-1, January 2015
Pages:
40-46
Received:
9 September 2014
Accepted:
12 September 2014
Published:
17 October 2014
Abstract: The paper summarizes some experience with air permeability modeling in the area of air filtering, clothes design, yarns dyeing, etc. Next part deals with surfaces blowing and drying, used in various branches of industry. The received results describe actual situation and give the direction of next progress in both research and plant operation.
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Flow Numerical Simulation in Various Technologies
Karel Adamek,
Pavel Peukert,
Jan Kolar,
Jozef Kaniok,
Jaroslav Pelant,
Martin Kyncl,
Jirí Storek,
Marcel Havrda
Issue:
Volume 3, Issue 1-1, January 2015
Pages:
47-52
Received:
9 September 2014
Accepted:
12 September 2014
Published:
17 October 2014
Abstract: This paper summarizes some examples of applications of flow numerical simulations in the area of various textile technologies and equipment, as for instance application of vortex tube, fibers production from melted polymer, chemical yarn texturizing by air flow, high-speed bearing. The examples are completed by cases from car industry – independent heater, cavitation in shock absorber.
Abstract: This paper summarizes some examples of applications of flow numerical simulations in the area of various textile technologies and equipment, as for instance application of vortex tube, fibers production from melted polymer, chemical yarn texturizing by air flow, high-speed bearing. The examples are completed by cases from car industry – independent...
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Conclusion
Issue:
Volume 3, Issue 1-1, January 2015
Pages:
53-53
Received:
9 September 2014
Accepted:
12 September 2014
Published:
17 October 2014
