[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-1-en-105":3,"doc-seo-246162-105":53,"doc-detail-246162-en":127},{"code":4,"msg":5,"data":6},0,"success",[7,14,19,24,29,34,39,44,49],{"id":8,"doc_module":9,"doc_module_name":10,"category_name":11,"show_sort_weight":12,"slug":13},11,1,"Template","Presentations",90,"presentations",{"id":15,"doc_module":9,"doc_module_name":10,"category_name":16,"show_sort_weight":17,"slug":18},12,"Resumes",80,"resumes",{"id":20,"doc_module":9,"doc_module_name":10,"category_name":21,"show_sort_weight":22,"slug":23},14,"Invoices",70,"invoices",{"id":25,"doc_module":9,"doc_module_name":10,"category_name":26,"show_sort_weight":27,"slug":28},15,"Posters",60,"posters",{"id":30,"doc_module":9,"doc_module_name":10,"category_name":31,"show_sort_weight":32,"slug":33},16,"Social Media",50,"social-media",{"id":35,"doc_module":9,"doc_module_name":10,"category_name":36,"show_sort_weight":37,"slug":38},17,"Forms",40,"forms",{"id":40,"doc_module":9,"doc_module_name":10,"category_name":41,"show_sort_weight":42,"slug":43},18,"Letters",30,"letters",{"id":45,"doc_module":9,"doc_module_name":10,"category_name":46,"show_sort_weight":47,"slug":48},21,"Paper Templates",5,"papers-templates",{"id":50,"doc_module":9,"doc_module_name":10,"category_name":51,"show_sort_weight":4,"slug":52},158,"General","general-158",{"code":4,"msg":54,"data":55},"ok",{"site_id":56,"language":57,"slug":58,"title":59,"keywords":60,"description":61,"schema_data":62,"social_meta":120,"head_meta":122,"extra_data":124,"updated_unix":126},105,"en","axial-and-radial-turbines-blocked-mass-flow-operation-introduction","Axial and radial turbines - blocked mass flow operation - introduction","","Analysis of axial and radial turbine performance is presented with an emphasis on one-dimensional modeling. The work integrates the Euler equation at the rotor inlet and outlet using two flow hypotheses: spanwise inlet flow homogeneity and outlet angular-momentum conservation. A simple performance prediction approach is proposed for blocked mass-flow operation, compared against experimental verification for two turbine stages under operational and geometric off-design conditions.",{"@graph":63,"@context":119},[64,80,102],{"@type":65,"itemListElement":66},"BreadcrumbList",[67,71,74,77],{"item":68,"name":69,"@type":70,"position":9},"https://docshare.wps.com","Home","ListItem",{"item":72,"name":10,"@type":70,"position":73},"https://docshare.wps.com/template/",2,{"item":75,"name":11,"@type":70,"position":76},"https://docshare.wps.com/template/presentations/",3,{"item":78,"name":59,"@type":70,"position":79},"https://docshare.wps.com/template/axial-and-radial-turbines-blocked-mass-flow-operation-introduction/246162/",4,{"url":78,"name":59,"@type":81,"image":82,"author":87,"headline":59,"publisher":90,"fileFormat":93,"inLanguage":57,"description":61,"dateModified":94,"datePublished":95,"encodingFormat":93,"isAccessibleForFree":96,"interactionStatistic":97},"DigitalDocument",{"url":83,"@type":84,"width":85,"height":86},"https://docshare.wps.com/thumbnails/axial-and-radial-turbines-blocked-mass-flow-operation-introduction/246162.png","ImageObject",442,249,{"name":88,"@type":89},"\tJames","Person",{"url":68,"name":91,"@type":92},"DocShare","Organization","application/pdf","2026-10-19","2026-09-12",true,{"@type":98,"interactionType":99,"userInteractionCount":101},"InteractionCounter",{"@type":100},"ViewAction",8,{"@type":103,"mainEntity":104},"FAQPage",[105,111,115],{"name":106,"@type":107,"acceptedAnswer":108},"What modeling hypotheses are used to ease Euler equation integration at the rotor inlet and outlet?","Question",{"text":109,"@type":110},"The model assumes spanwise homogeneity of the inlet flow and conservation of angular momentum at the outlet.","Answer",{"name":112,"@type":107,"acceptedAnswer":113},"How does the paper address performance prediction for blocked mass flow operation?",{"text":114,"@type":110},"It proposes a simple performance prediction analysis for the blocked mass flow operating case and compares predicted results with measurements.",{"name":116,"@type":107,"acceptedAnswer":117},"What aspects of off-design conditions are analyzed experimentally?",{"text":118,"@type":110},"Experimental verification considers operational and geometric off-designs, focusing on how pressure ratio affects the first stage and stator geometry affects the second stage.","https://schema.org",{"og:url":78,"og:type":121,"og:title":59,"og:site_name":91,"og:description":61},"article",{"robots":123,"canonical":78},"index,follow",{"doc_id":125,"site_id":56},246162,1791722041,{"code":4,"msg":5,"data":128},{"doc_id":125,"user_id":129,"nickname":88,"user_avatar":130,"doc_module":9,"category_id":8,"category_name":11,"doc_title":59,"doc_description":61,"doc_content":131,"file_id":132,"file_url":133,"file_type":134,"file_size":135,"view_count":101,"is_deleted":4,"is_public":9,"is_downloadable":9,"audit_status":9,"page_count":136,"language":137,"language_code":57,"site_id":56,"html_lang":57,"table_of_contents":138,"faqs":139,"seo_title":140,"seo_description":61,"update_tm":141,"read_time":73},2336474466412,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","Continue  \nAxial and radial turbines moustapha pdf windows 10 windows 10  \nRotational speed is given by count on the compressor stage; the values of and follow. This analysis is presented as follows.To ease the integration of the Euler equation at the inlet and outlet of the rotor, two hypotheses on the flow are generally considered as follows:(i)the homogeneity of the flow along the span of the blade at the inlet;(ii)the conservation of the angular moment at the outlet. Nevertheless, a simple performance prediction analysis is proposed for blocked mass flow operation.1. IntroductionNowadays radial-inflow turbines are preferred to axial machines in an important number of applications. This observation has led to introduce a one-dimension analysis whose hypotheses are not based on design-point simplification. The direct influence of the stator configuration on the pressure-ratio lines confirms the applicability of this work to variable-geometry stages. These procedures now involve elaborated codes allowing off-design predictions, made so far with the use of specific routines such as Wasserbauer and Glassmann [8] . A dimensionless cross-section of the stator is thus defined. His principal areas of work include the design and development of various centrifugal compressor, pump, and turbine stages including the development of design tools. As Nrt increases, the choking value of decreases, hence defining the stack of speed lines quoted on Figure 2(b) . According to (9), it was supposed to be fixed by the rotor geometry, with no possible evolution. He is an Adjunct Professor and lecturer at Concordia, McGill and Ecole de Technologie Superieur in Canada. For the second case, the evolution of efficiency against rotational speed can be deduced. The first turbine stage (TS1) is part of an aircraft air-conditioning pack. Experimental results for two stages showed similar influences in good agreement with the analysis. Equation (12) expresses the expected evolution of efficiency against rotational speed, the prediction and the results are plotted on Figure 6(c) . (a)(b)(c)(a)(b)(c)A very good agreement is achieved between the predicted interpolation and the actual measurements. The slope increases with the pressure ratio and decreases with and as illustrated in Figure 2(a) . (a)(b)(a)(b)In this diagram, the effects of operating and geometric off-designs are unified. An intersection between a pressure-ratio line and a speed line defines the value of the reduced tip speed () . He is the author of numerous papers and three books on turbomachinery. The conservation of the mass flow along the pressure-ratio line has direct influence on the accuracy. The results of the analysis will be compared with experimental results for validation in the second part. Experimental results of two turbine stages will now be analyzed in that context, focusing on the influence of the pressure ratio for the first stage and stator geometry for the second.3. Experimental VerificationThe above analysis is compared to the results of experiments performed with two different turbine stages, representing either operational or geometric off-designs. He has received three prizes from the Institution of Mechanical Engineers for his publications. Apart from specific losses due to technological effects (mechanical clearance, partial admission at rotor inlet, spacers), the nozzle configuration is likely to take extreme positions, which may prove critical when using classical models.The present paper provides a basis to obtain simple off-design information from existing or predesigned machines on either fixed-or variable-geometry stages. Recent developments in prediction and optimization methods allowed such an integration, but involving complex algorithms is coupled with semiempiric loss models. Baines is Director, Education and Publication Services and a consulting engineer at Concepts NREC. The results are plotted in the map (see Figure 4) . (a)(b)(a)(b)The linearity of the","cbCaitWYJajQifUP","https://ap.wps.com/l/cbCaitWYJajQifUP","pdf",95210,6,"English","# Introduction\n# Performance prediction for blocked mass flow operation\n# Experimental verification\n## Operational and geometric off-designs","[{\"question\":\"What modeling hypotheses are used to ease Euler equation integration at the rotor inlet and outlet?\",\"answer\":\"The model assumes spanwise homogeneity of the inlet flow and conservation of angular momentum at the outlet.\"},{\"question\":\"How does the paper address performance prediction for blocked mass flow operation?\",\"answer\":\"It proposes a simple performance prediction analysis for the blocked mass flow operating case and compares predicted results with measurements.\"},{\"question\":\"What aspects of off-design conditions are analyzed experimentally?\",\"answer\":\"Experimental verification considers operational and geometric off-designs, focusing on how pressure ratio affects the first stage and stator geometry affects the second stage.\"}]","Axial and radial turbines - blocked mass flow operation - introduction | PDF",1789233677]