{"title":"Estimation of Turbulent Heat Transfer at the Sonic Point of a Blunt-Nosed Body","authors":"M. Sibulkin","doi":"10.2514/8.7381","DOIUrl":"https://doi.org/10.2514/8.7381","url":null,"abstract":"","PeriodicalId":304231,"journal":{"name":"Journal of Jet Propulsion","volume":"38-39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1958-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128642606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Observations Made During Manhigh II Flight","authors":"D. G. Simons","doi":"10.2514/8.7374","DOIUrl":"https://doi.org/10.2514/8.7374","url":null,"abstract":"","PeriodicalId":304231,"journal":{"name":"Journal of Jet Propulsion","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1958-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116766770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To the extent t h a t one is able to make rough estimates of velocity losses due to gravity, drag and turning, these losses can be included as modifications of the required V in Equat ion [5], and the corrections will be reflected in the determination of the IJLJ. The resulting improvement is, of course, no bet ter than the estimates of the losses; hence this method is not a substitute for accurate calculations with a high-speed digital computer. Instead, it has proved to be a valuable auxiliary, in providing very good slide-rule designs, thereby materially
{"title":"Optimum Rocket Trajectories With Aerodynamic Drag","authors":"A. Bryson, S. Ross","doi":"10.2514/8.7355","DOIUrl":"https://doi.org/10.2514/8.7355","url":null,"abstract":"To the extent t h a t one is able to make rough estimates of velocity losses due to gravity, drag and turning, these losses can be included as modifications of the required V in Equat ion [5], and the corrections will be reflected in the determination of the IJLJ. The resulting improvement is, of course, no bet ter than the estimates of the losses; hence this method is not a substitute for accurate calculations with a high-speed digital computer. Instead, it has proved to be a valuable auxiliary, in providing very good slide-rule designs, thereby materially","PeriodicalId":304231,"journal":{"name":"Journal of Jet Propulsion","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1958-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121029493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Solutions to Stoolman's External Diffusion Equation for Instability of a Normal Shock Inlet Diffuser","authors":"Chieh‐Chien Chang, C. Hsu","doi":"10.2514/8.7350","DOIUrl":"https://doi.org/10.2514/8.7350","url":null,"abstract":"","PeriodicalId":304231,"journal":{"name":"Journal of Jet Propulsion","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1958-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124879350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I t is shown in the above analysis t ha t the acoustic impedance is always a negative quant i ty . In other words, the amplitude of the reflected wave from the shock is always damped. Since the inlet is the only mechanism responsible for the instabili ty of the diffuser (3), it is obvious tha t the flow is intrinsically stable without taking consideration of viscosity and unsteadiness. Fur ther work will be published to show t h a t the viscous dissipation is responsible for the instabili ty of supersonic inlet diffusers even in a quasi-steady analysis.
{"title":"The Optimization of the N-Step Rocket With Different Construction Parameters and Propellant Specific Impulses in Each Stage","authors":"M. Subotowicz","doi":"10.2514/8.7352","DOIUrl":"https://doi.org/10.2514/8.7352","url":null,"abstract":"I t is shown in the above analysis t ha t the acoustic impedance is always a negative quant i ty . In other words, the amplitude of the reflected wave from the shock is always damped. Since the inlet is the only mechanism responsible for the instabili ty of the diffuser (3), it is obvious tha t the flow is intrinsically stable without taking consideration of viscosity and unsteadiness. Fur ther work will be published to show t h a t the viscous dissipation is responsible for the instabili ty of supersonic inlet diffusers even in a quasi-steady analysis.","PeriodicalId":304231,"journal":{"name":"Journal of Jet Propulsion","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1958-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125867504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Trajectory of a Rocket With Thrust","authors":"R. Struble, C. E. Stewart, James Granton","doi":"10.2514/8.7357","DOIUrl":"https://doi.org/10.2514/8.7357","url":null,"abstract":"","PeriodicalId":304231,"journal":{"name":"Journal of Jet Propulsion","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1958-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131276245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On the Optimization of Multistage Rockets","authors":"H. Hall, E. Zambelli","doi":"10.2514/8.7353","DOIUrl":"https://doi.org/10.2514/8.7353","url":null,"abstract":"","PeriodicalId":304231,"journal":{"name":"Journal of Jet Propulsion","volume":"147 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1958-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120897061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Recent Advances in Convective Heat Transfer With Dissociation and Atom Recombination","authors":"D. E. Rosner","doi":"10.2514/8.7346","DOIUrl":"https://doi.org/10.2514/8.7346","url":null,"abstract":"","PeriodicalId":304231,"journal":{"name":"Journal of Jet Propulsion","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1958-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121811687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Some Properties of a Simplified Model of Solid Propellant Burning","authors":"L. Green","doi":"10.2514/8.7327","DOIUrl":"https://doi.org/10.2514/8.7327","url":null,"abstract":"","PeriodicalId":304231,"journal":{"name":"Journal of Jet Propulsion","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1958-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121060232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Several investigators have attempted to explain and evaluate turbulent burning rates by assuming the turbulent flame brush to be a zone traversed by a wrinkled continuous laminar flame front. Others have argued that the brush consists of a distributed reaction zone characterized by turbulent energy transport and diffusion of active species. A third point of view is that of visualizing the brush as a region containing disconnected flamelets of varying chemical composition. The purpose of the present paper is to state the case for the wrinkled wave concept and to place limits on the regime of its applicability. Experiments indicate that the distributed reaction zone model applies to conditions of incomplete burning within the flame brush. It is suggested that the transition from wrinkled wave to distributed reaction zone corresponds to the breakdown of full turbulent flames through the incidence of "holes." New photometric evidence is presented.
{"title":"Evidence for the Wrinkled Continuous Laminar Wave Concept of Turbulent Burning","authors":"J. Richmond","doi":"10.2514/8.7328","DOIUrl":"https://doi.org/10.2514/8.7328","url":null,"abstract":"Several investigators have attempted to explain and evaluate turbulent burning rates by assuming the turbulent flame brush to be a zone traversed by a wrinkled continuous laminar flame front. Others have argued that the brush consists of a distributed reaction zone characterized by turbulent energy transport and diffusion of active species. A third point of view is that of visualizing the brush as a region containing disconnected flamelets of varying chemical composition. The purpose of the present paper is to state the case for the wrinkled wave concept and to place limits on the regime of its applicability. Experiments indicate that the distributed reaction zone model applies to conditions of incomplete burning within the flame brush. It is suggested that the transition from wrinkled wave to distributed reaction zone corresponds to the breakdown of full turbulent flames through the incidence of \"holes.\" New photometric evidence is presented.","PeriodicalId":304231,"journal":{"name":"Journal of Jet Propulsion","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1958-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114270175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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