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Engine knocking
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==Knock prediction== Since the avoidance of knocking combustion is so important to development engineers, a variety of simulation technologies have been developed which can identify engine design or operating conditions in which knock might be expected to occur. This then enables engineers to design ways to mitigate knocking combustion whilst maintaining a high [[thermal efficiency]].{{Citation needed|date=December 2023}} Since the onset of knock is sensitive to the in-cylinder pressure, temperature and autoignition chemistry associated with the local mixture compositions within the combustion chamber, simulations which account for all of these aspects<ref name="Advanced Simulation Technologies">{{cite web |title = Advanced simulation technologies |publisher = Cmcl Innovations, UK |url = http://www.cmclinnovations.com/products/srmsuite/srmsuite-SI.html |access-date = 12 June 2010 |archive-url = https://web.archive.org/web/20110409215355/http://www.cmclinnovations.com/products/srmsuite/srmsuite-SI.html |archive-date = 9 April 2011 }}</ref> have thus proven most effective in determining knock operating limits and enabling engineers to determine the most appropriate operating strategy.
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