Lewy's example - Revision history

en>Monkbot: /* References */Task 6k: add |script-title=; replace {{xx icon}} with |language= in CS1 citations; clean up language icons;

2014-12-04T17:44:34Z

References: Task 6k: add |script-title=; replace {{xx icon}} with |language= in CS1 citations; clean up language icons;

← Older revision		Revision as of 19:44, 4 December 2014
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	''~~'T-stage''~~'s~~, sometimes called boost stages, are mounted on the low pressure (LP) shaft of some [[turbofan]] engines directly behind the fan~~.		Oscar is how he's known as and he totally enjoys this name. For many years he's been working as a meter reader and it's something he really appreciate. To collect coins is what his family and him enjoy. Minnesota has usually been his std home test - [http://www.pornextras.info/user/G49Z click the following web page] - but his spouse desires them to transfer.

	~~T-stages are used to increase overall pressure ratio~~ and~~, for a given core size, the core mass flow~~. ~~This is demonstrated by the following relationship:~~

	:~~'''<math>w_2 = (w_2 \sqrt{T_3}~~/~~P_3) * (P_2~~/~~\sqrt{T_2})* (P_3/P_2) / \sqrt{T_3~~/~~T_2} \,<~~/~~math>'''~~

	~~:where:~~

	~~:core mass flow = '''<math>w_2 \,</math>'''~~

	~~:core size = '''<math>(w_2 \sqrt{T_3}/P_3) \,</math>'''~~

	~~:core entry total pressure = '''<math>P_2 \,</math>'''~~

	~~:core entry total temperature = '''<math>T_2 \,</math>'''~~

	~~:core total head pressure ratio = '''<math>P_3/P_2 \,</math>'''~~

	~~:core total head temperature ratio = '''<math>T_3/T_2 \,</math>''' which varies more slowly than '''<math>P_3/P_2 \,</math>'''~~

	~~:'''Note:'''~~
	~~:in this case,~~ the ~~core refers to the whole of the gas generator compression, not just that of the high pressure (HP) compressor.~~

	~~:The first two terms - before the second multiply - are constant. The value of the remainder of the expression increases as the core pressure ratio increases.~~

	~~T-stages are a popular method for uprating the thrust of an engine (see, for example the [[Pratt & Whitney Canada PW500]~~]).

	~~The alternative is to place a [[zero~~-stage]], mounted on the HP shaft, at the front of the HP compressor. This approach requires a significant change in the HP turbine, whereas a T-stage can, if necessary, be accommodated by simply adding an additional stage to ~~the rear of the LP turbine~~.

	Although T-stages usually only [[Supercharger\|supercharge]] the core stream, some engines do feature a deliberately oversized intermediate pressure (IP) compressor, which compresses both the core flow and a proportion of the bypass flow. This enhances the stability of the T-stages during throttling. Where necessary, the alternative is to employ blow-off valves.

	~~[[Category:Jet engines]]~~

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2013-03-15T16:38:22Z

Bot: Migrating 1 interwiki links, now provided by Wikidata on d:q814880

← Older revision		Revision as of 18:38, 15 March 2013
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	~~The author~~'~~s title is Christy Brookins. For a whilst I~~'~~ve been in Mississippi but now I~~'~~m contemplating other choices. One~~ of the ~~issues she enjoys most is canoeing~~ and ~~she's been doing it~~ for ~~fairly~~ a ~~whilst. Distributing manufacturing has been his profession for some time~~.<br><br>~~my website [http~~://~~kpupf.com~~/xe/~~talk~~/~~735373 real psychics~~]		'''T-stage'''s, sometimes called boost stages, are mounted on the low pressure (LP) shaft of some [[turbofan]] engines directly behind the fan.

			T-stages are used to increase overall pressure ratio and, for a given core size, the core mass flow. This is demonstrated by the following relationship:

			:'''<math>w_2 = (w_2 \sqrt{T_3}/P_3) * (P_2/\sqrt{T_2})* (P_3/P_2) / \sqrt{T_3/T_2} \,</math>'''

			:where:

			:core mass flow = '''<math>w_2 \,</math>'''

			:core size = '''<math>(w_2 \sqrt{T_3}/P_3) \,</math>'''

			:core entry total pressure = '''<math>P_2 \,</math>'''

			:core entry total temperature = '''<math>T_2 \,</math>'''

			:core total head pressure ratio = '''<math>P_3/P_2 \,</math>'''

			:core total head temperature ratio = '''<math>T_3/T_2 \,</math>''' which varies more slowly than '''<math>P_3/P_2 \,</math>'''

			:'''Note:'''
			:in this case, the core refers to the whole of the gas generator compression, not just that of the high pressure (HP) compressor.

			:The first two terms - before the second multiply - are constant. The value of the remainder of the expression increases as the core pressure ratio increases.

			T-stages are a popular method for uprating the thrust of an engine (see, for example the [[Pratt & Whitney Canada PW500]]).

			The alternative is to place a [[zero-stage]], mounted on the HP shaft, at the front of the HP compressor. This approach requires a significant change in the HP turbine, whereas a T-stage can, if necessary, be accommodated by simply adding an additional stage to the rear of the LP turbine.

			Although T-stages usually only [[Supercharger\|supercharge]] the core stream, some engines do feature a deliberately oversized intermediate pressure (IP) compressor, which compresses both the core flow and a proportion of the bypass flow. This enhances the stability of the T-stages during throttling. Where necessary, the alternative is to employ blow-off valves.

			[[Category:Jet engines]]

en>ZéroBot: r2.7.1) (Robot: Adding de:Beispiel von Lewy

2012-04-28T16:38:56Z

r2.7.1) (Robot: Adding de:Beispiel von Lewy

New page

The author's title is Christy Brookins. For a whilst I've been in Mississippi but now I'm contemplating other choices. One of the issues she enjoys most is canoeing and she's been doing it for fairly a whilst. Distributing manufacturing has been his profession for some time.<br><br>my website [http://kpupf.com/xe/talk/735373 real psychics]