Towards time-resolved multi-property measurements by filtered Rayleigh scattering: diagnostic approach and verification

Towards time-resolved multi-property measurements by filtered Rayleigh scattering: diagnostic approach and verification | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Towards time-resolved multi-property measurements by filtered Rayleigh scattering: diagnostic approach and verification Ulrich Doll, Ralf Kapulla, Michael Dues, Jonas Steinbock, Sergey Melnikov, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3233271/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 11 Dec, 2023 Read the published version in Experiments in Fluids → Version 1 posted 7 You are reading this latest preprint version Abstract The use of multiple perspective views is a possible pathway towards the combined measurement of multiple time-resolved flow properties by filtered Rayleigh scattering (FRS). In this study, a six view observation concept is experimentally verified on a aspirated pipe flow. The concept was introduced in our previous work and it has the ability to simultaneously measure high-accuracy time-averaged and time-resolved three-component velocity, pressure and temperature fields. To simulate time-resolution, multi-view FRS data at a single optimised excitation frequency is selected and processed for multiple flow properties. Time-averaged and quasi time-resolved FRS results show very good agreement with differential pressure probe measurements and analytical temperature calculations and lie within ±2 m/s of complementary laser Doppler anemometry (LDA) velocity measurements for all operating points. The introduction of a multistage fitting procedure for the time-resolved analysis leads to a significant improvement of the precision by factors of 4 and 3 for temperature and axial velocity, and 17 for pressure. Moreover, both processing methods show their capacity to resolve flow structures in a swirling flow configuration. It is demonstrated that the developed multi-view concept can be used to determine multiple flow variables from a single-frequency measurement, opening the path towards time-resolved multi-parameter measurements by FRS. filtered Rayleigh scattering multi-property time-resolved multiple perspectives Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 11 Dec, 2023 Read the published version in Experiments in Fluids → Version 1 posted Editorial decision: Major revision 21 Oct, 2023 Reviews received at journal 31 Aug, 2023 Reviewers agreed at journal 10 Aug, 2023 Reviewers invited by journal 10 Aug, 2023 Editor assigned by journal 05 Aug, 2023 Submission checks completed at journal 05 Aug, 2023 First submitted to journal 04 Aug, 2023 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-3233271","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":224222715,"identity":"75b31789-ed82-43cc-ac89-bbfd4baaa150","order_by":0,"name":"Ulrich Doll","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAwUlEQVRIiWNgGAWjYDACdgaGA4wNDIwN7MyNDxgYJMAIP2CGaWFmbDYgWgsDVEsbRDEhLQaHeR8e+LmDQbYfqKW64I8FA//sBkJa2A0O9p5hMJ7ZzNh2eybQIok7BwhpYWM4zNjGkLgBSN7mbZBgMJBIIEFLMc8fUrUw87ARoUUSqOVgb5sEyC/N0kC/8EjcIKCF73gb84efbTay/ezNBz8X/KmT459BQAsUQOICFEc8RKmHA2bSlI+CUTAKRsFIAQCu2j4OGa5oagAAAABJRU5ErkJggg==","orcid":"","institution":"Paul Scherrer Institute","correspondingAuthor":true,"submittingAuthor":false,"prefix":"","firstName":"Ulrich","middleName":"","lastName":"Doll","suffix":""},{"id":224222716,"identity":"e6ea53fc-b4a7-4ac6-9251-4fbd12af60bb","order_by":1,"name":"Ralf Kapulla","email":"","orcid":"","institution":"Paul Scherrer Institute","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Ralf","middleName":"","lastName":"Kapulla","suffix":""},{"id":224222717,"identity":"685f94a5-93bb-4cae-9c61-f14418fede4c","order_by":2,"name":"Michael Dues","email":"","orcid":"","institution":"ILA R\u0026D GmbH","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Michael","middleName":"","lastName":"Dues","suffix":""},{"id":224222718,"identity":"055f6205-5a26-4f21-8761-db37b9eb1190","order_by":3,"name":"Jonas Steinbock","email":"","orcid":"","institution":"ILA R\u0026D GmbH","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Jonas","middleName":"","lastName":"Steinbock","suffix":""},{"id":224222719,"identity":"0bcfd985-d55d-42c2-9996-cf1ebeda8d1f","order_by":4,"name":"Sergey Melnikov","email":"","orcid":"","institution":"Beuth University of Applied Sciences","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Sergey","middleName":"","lastName":"Melnikov","suffix":""},{"id":224222720,"identity":"32a0dca8-3ba1-402b-a389-31e5e39221e0","order_by":5,"name":"Ingo Röhle","email":"","orcid":"","institution":"Beuth University of Applied Sciences","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Ingo","middleName":"","lastName":"Röhle","suffix":""},{"id":224222721,"identity":"fe3e3227-f747-48fd-927e-5b5e495010b3","order_by":6,"name":"Matteo Migliorini","email":"","orcid":"","institution":"Cranfield University","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Matteo","middleName":"","lastName":"Migliorini","suffix":""},{"id":224222722,"identity":"1122283b-ce3f-4a38-af03-794713237010","order_by":7,"name":"Pavlos K. 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