{"id":{"repo_id":"greece","oai_identifier":"oai:10442/0545"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/0545","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"Η ΔΟΜΗ ΤΟΥ ΤΥΡΒΩΔΟΥΣ ΠΕΔΙΟΥ ΘΕΡΜΟΚΡΑΣΙΑΣ ΠΑΝΩ ΑΠΟ ΘΕΡΜΑΙΝΟΜΕΝΕΣ ΕΠΙΦΑΝΕΙΕΣ","abstract":"THE RESULTS OF AN EXPERIMENT ARE PRESENTED, CONSERNING THE STRUCTURE OF THE FREE CONVECTION TURBULENT TEMPERATURE FIELD, CREATED ABOVE A HEATED PLANE, IN RELATION TO LARGE SCALE STRUCTURES. TWO CONFIGURATIONS WERE EXAMINED NAMELY, THE HORIZONTAL AND THAT INCLINED AT 45 DEGREES. SINCE THE FLOW ABOVE THE HORIZONTAL PLATE IS NEARLY HOMOGENEOUS THIS CONFIGURATION WAS ALSO USED AS A REFERENCE CASE. THE OBTAINED MEASUREMENTS CONSISTED OF MEAN AND STATISTICAL TURBULENT QUANTITIES. IN THE HORIZONTAL CASE THE TURBULENT FIELD WAS FOUND DOUBLE STRUCTURED ANDDEPARTING SIGNIFICANTLY FROM HOMOGENITY. THE DETECTED RISING COLUMNS OF HEATEDAIR WERE ORIGINATED FROM INSTABILITIES CREATED WITHIN THE \"CONVECTIVE\" LAYER. IN THE CASE OF THE INCLINED PLATE THE FLOW FIELD WAS FOUND TO BE COMPLICATED EXHIBITING THE COMBINED CHARACTERISTICS OF A THERMAL BOUNDARY LAYER AND A FREE CONVECTION FLOW ABOVE A HORIZONTAL PLATE.","abstract_html":"THE RESULTS OF AN EXPERIMENT ARE PRESENTED, CONSERNING THE STRUCTURE OF THE FREE CONVECTION TURBULENT TEMPERATURE FIELD, CREATED ABOVE A HEATED PLANE, IN RELATION TO LARGE SCALE STRUCTURES. TWO CONFIGURATIONS WERE EXAMINED NAMELY, THE HORIZONTAL AND THAT INCLINED AT 45 DEGREES. SINCE THE FLOW ABOVE THE HORIZONTAL PLATE IS NEARLY HOMOGENEOUS THIS CONFIGURATION WAS ALSO USED AS A REFERENCE CASE. THE OBTAINED MEASUREMENTS CONSISTED OF MEAN AND STATISTICAL TURBULENT QUANTITIES. IN THE HORIZONTAL CASE THE TURBULENT FIELD WAS FOUND DOUBLE STRUCTURED ANDDEPARTING SIGNIFICANTLY FROM HOMOGENITY. THE DETECTED RISING COLUMNS OF HEATEDAIR WERE ORIGINATED FROM INSTABILITIES CREATED WITHIN THE "CONVECTIVE" LAYER. IN THE CASE OF THE INCLINED PLATE THE FLOW FIELD WAS FOUND TO BE COMPLICATED EXHIBITING THE COMBINED CHARACTERISTICS OF A THERMAL BOUNDARY LAYER AND A FREE CONVECTION FLOW ABOVE A HORIZONTAL PLATE.","abstract_has_math":false,"creators":["Τσιρίκογλου, Θεόδωρος"],"institution":"Πανεπιστήμιο Πατρών","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1987,"date_issued":"1987","date_published":"1987","updated_at":"2026-07-24T02:25:21Z","subjects":["FREE CONVECTION","Large scale structures","TURBULENT FREE CONVECTION","TURBULENT FREE CONVECTION TEMPERATURE FIELD","ΔΟΜΕΣ ΜΕΓΑΛΗΣ ΚΛΙΜΑΚΑΣ ΣΤΗΝ ΤΥΡΒΗ","ΤΥΡΒΩΔΗΣ ΕΛΕΥΘΕΡΗ ΜΕΤΑΦΟΡΑ ΘΕΡΜΟΤΗΤΑΣ","Engineering and Technology","Mechanical Engineering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Μηχανολόγου Μηχανικού"],"languages":["gre"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0545"],"render_values":[{"text":"10.12681/eadd/0545","href":"https://doi.org/10.12681/eadd/0545","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/0545","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Τσιρίκογλου, Θεόδωρος"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1987"]},{"key":"dc:publisher","label":"Institution","values":["Πανεπιστήμιο Πατρών","University of Patras"]},{"key":"dc:type","label":"Dc Type","values":["PhD Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["FREE CONVECTION","Large scale structures","TURBULENT FREE CONVECTION","TURBULENT FREE CONVECTION TEMPERATURE FIELD","ΔΟΜΕΣ ΜΕΓΑΛΗΣ ΚΛΙΜΑΚΑΣ ΣΤΗΝ ΤΥΡΒΗ","ΤΥΡΒΩΔΗΣ ΕΛΕΥΘΕΡΗ ΜΕΤΑΦΟΡΑ ΘΕΡΜΟΤΗΤΑΣ","Engineering and Technology","Mechanical Engineering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Μηχανολόγου Μηχανικού"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["gre"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0545","http://hdl.handle.net/10442/hedi/0545"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["THE RESULTS OF AN EXPERIMENT ARE PRESENTED, CONSERNING THE STRUCTURE OF THE FREE CONVECTION TURBULENT TEMPERATURE FIELD, CREATED ABOVE A HEATED PLANE, IN RELATION TO LARGE SCALE STRUCTURES. TWO CONFIGURATIONS WERE EXAMINED NAMELY, THE HORIZONTAL AND THAT INCLINED AT 45 DEGREES. SINCE THE FLOW ABOVE THE HORIZONTAL PLATE IS NEARLY HOMOGENEOUS THIS CONFIGURATION WAS ALSO USED AS A REFERENCE CASE. THE OBTAINED MEASUREMENTS CONSISTED OF MEAN AND STATISTICAL TURBULENT QUANTITIES. IN THE HORIZONTAL CASE THE TURBULENT FIELD WAS FOUND DOUBLE STRUCTURED ANDDEPARTING SIGNIFICANTLY FROM HOMOGENITY. THE DETECTED RISING COLUMNS OF HEATEDAIR WERE ORIGINATED FROM INSTABILITIES CREATED WITHIN THE \"CONVECTIVE\" LAYER. IN THE CASE OF THE INCLINED PLATE THE FLOW FIELD WAS FOUND TO BE COMPLICATED EXHIBITING THE COMBINED CHARACTERISTICS OF A THERMAL BOUNDARY LAYER AND A FREE CONVECTION FLOW ABOVE A HORIZONTAL PLATE.","ΣΤΗ ΔΙΔΑΚΤΟΡΙΚΗ ΑΥΤΗ ΕΡΓΑΣΙΑ, ΕΞΕΤΑΖΕΤΑΙ Η ΔΟΜΗ ΤΟΥ ΤΥΡΒΩΔΟΥΣ ΘΕΡΜΟΚΡΑΣΙΑΚΟΥ ΠΕΔΙΟΥ ΕΛΕΥΘΕΡΗΣ ΜΕΤΑΦΟΡΑΣ, ΠΟΥ ΔΗΜΙΟΥΡΓΕΙΤΑΙ ΠΑΝΩ ΑΠΟ ΘΕΡΜΑΙΝΟΜΕΝΗ ΠΛΑΚΑ ΜΕΤΑΒΛΗΤΗΣ ΚΛΙΣΗΣ. ΙΔΙΑΙΤΕΡΗ ΠΡΟΣΟΧΗ ΔΙΔΕΤΑΙ ΣΤΟ ΣΧΗΜΑΤΙΣΜΟ ΚΑΙ ΤΟ ΡΟΛΟ ΤΩΝ ΔΟΜΩΝ ΜΕΓΑΛΗΣ ΚΛΙΜΑΚΑΣ ΣΕ ΣΧΕΣΗ ΜΕ ΤΑ ΦΑΙΝΟΜΕΝΑ ΤΥΡΒΩΔΟΥΣ ΜΕΤΑΦΟΡΑΣ. ΕΞΕΤΑΖΟΝΤΑΙ ΔΥΟ ΘΕΣΕΙΣ ΤΗΣ ΠΛΑΚΑΣ: Α. Η ΟΡΙΖΟΝΤΙΑ ΚΑΙ Β. Η ΚΕΚΛΙΜΕΝΗ ΣΕ 45 ΜΟΙΡΕΣ. ΜΕΤΡΗΘΗΚΑΝ ΜΕ ΤΕΧΝΙΚΗ HOT-WIRE ΜΕΣΑ ΚΑΙ ΣΤΑΤΙΣΤΙΚΑ ΤΥΡΒΩΔΗ ΜΕΓΕΘΗ ΟΠΩΣ ΜΕΣΗ ΘΕΡΜΟΚΡΑΣΙΑ, ΤΥΡΒΩΔΕΙΣ ΕΝΤΑΣΕΙΣ, ΑΥΤΟΣΥΣΧΕΤΗΣΗ, ΦΑΣΜΑΤΑ ΙΣΧΥΟΣ ΚΛΠ. ΕΠΙΣΗΣ ΧΡΗΣΙΜΟΠΟΙΗΘΗΚΕ Η ΜΕΘΟΔΟΣ SCHLIEREN ΓΙΑ ΤΗΝ ΟΠΤΙΚΗ ΜΕΛΕΤΗ ΤΟΥ ΡΟΙΚΟΥ ΠΕΔΙΟΥ. ΣΤΗΝ ΟΡΙΖΟΝΤΙΑ ΘΕΣΗ, ΕΥΡΙΣΚΕΤΑΙ ΟΤΙ ΤΟ ΤΥΡΒΩΔΕΣ ΠΕΔΙΟ ΑΠΕΧΕΙ ΑΙΣΘΗΤΑ ΑΠΟ ΤΗΝ ΟΜΟΓΕΝΕΙΑ. ΟΙ ΑΝΕΡΧΟΜΕΝΕΣ ΜΑΖΕΣ ΘΕΡΜΟΥ ΑΕΡΑ ΞΕΚΙΝΟΥΝ ΑΠΟ ΑΣΤΑΘΕΙΕΣ ΠΟΥ ΔΗΜΙΟΥΡΓΟΥΝΤΑΙ ΜΕΣΑ ΣΤΟ ΣΤΡΩΜΑ ΑΓΩΓΗΣ. ΣΤΗΝ ΠΕΡΙΠΤΩΣΗ ΚΕΚΛΙΜΕΝΗΣ ΠΛΑΚΑΣ, ΤΟ ΡΟΙΚΟ ΠΕΔΙΟ ΕΥΡΙΣΚΕΤΑΙ ΝΑ ΕΙΝΑΙ ΣΥΝΘΕΤΟ, ΣΥΝΔΙΑΖΟΝΤΑΣ ΤΑ ΧΑΡΑΚΤΗΡΙΣΤΙΚΑ ΕΝΟΣ ΘΕΡΜΙΚΟΥ ΟΡΙΑΚΟΥ ΣΤΡΩΜΑΤΟΣ ΚΑΙ ΜΙΑΣ ΡΟΗΣ ΕΛΕΥΘΕΡΗΣ ΜΕΤΑΦΟΡΑΣ ΠΑΝΩ ΑΠΟ ΟΡΙΖΟΝΤΙΑ ΠΛΑΚΑ."]},{"key":"dc:title","label":"Title","values":["Η ΔΟΜΗ ΤΟΥ ΤΥΡΒΩΔΟΥΣ ΠΕΔΙΟΥ ΘΕΡΜΟΚΡΑΣΙΑΣ ΠΑΝΩ ΑΠΟ ΘΕΡΜΑΙΝΟΜΕΝΕΣ ΕΠΙΦΑΝΕΙΕΣ","THE STRUCTURE OF THE TURBULENT TEMPERATURE FIELD ABOVE HEATED PLANES"]}]}],"canonical_facts":{"dc:creator":["Τσιρίκογλου, Θεόδωρος"],"dc:date":["1987"],"dc:description":["THE RESULTS OF AN EXPERIMENT ARE PRESENTED, CONSERNING THE STRUCTURE OF THE FREE CONVECTION TURBULENT TEMPERATURE FIELD, CREATED ABOVE A HEATED PLANE, IN RELATION TO LARGE SCALE STRUCTURES. TWO CONFIGURATIONS WERE EXAMINED NAMELY, THE HORIZONTAL AND THAT INCLINED AT 45 DEGREES. SINCE THE FLOW ABOVE THE HORIZONTAL PLATE IS NEARLY HOMOGENEOUS THIS CONFIGURATION WAS ALSO USED AS A REFERENCE CASE. THE OBTAINED MEASUREMENTS CONSISTED OF MEAN AND STATISTICAL TURBULENT QUANTITIES. IN THE HORIZONTAL CASE THE TURBULENT FIELD WAS FOUND DOUBLE STRUCTURED ANDDEPARTING SIGNIFICANTLY FROM HOMOGENITY. THE DETECTED RISING COLUMNS OF HEATEDAIR WERE ORIGINATED FROM INSTABILITIES CREATED WITHIN THE \"CONVECTIVE\" LAYER. IN THE CASE OF THE INCLINED PLATE THE FLOW FIELD WAS FOUND TO BE COMPLICATED EXHIBITING THE COMBINED CHARACTERISTICS OF A THERMAL BOUNDARY LAYER AND A FREE CONVECTION FLOW ABOVE A HORIZONTAL PLATE.","ΣΤΗ ΔΙΔΑΚΤΟΡΙΚΗ ΑΥΤΗ ΕΡΓΑΣΙΑ, ΕΞΕΤΑΖΕΤΑΙ Η ΔΟΜΗ ΤΟΥ ΤΥΡΒΩΔΟΥΣ ΘΕΡΜΟΚΡΑΣΙΑΚΟΥ ΠΕΔΙΟΥ ΕΛΕΥΘΕΡΗΣ ΜΕΤΑΦΟΡΑΣ, ΠΟΥ ΔΗΜΙΟΥΡΓΕΙΤΑΙ ΠΑΝΩ ΑΠΟ ΘΕΡΜΑΙΝΟΜΕΝΗ ΠΛΑΚΑ ΜΕΤΑΒΛΗΤΗΣ ΚΛΙΣΗΣ. ΙΔΙΑΙΤΕΡΗ ΠΡΟΣΟΧΗ ΔΙΔΕΤΑΙ ΣΤΟ ΣΧΗΜΑΤΙΣΜΟ ΚΑΙ ΤΟ ΡΟΛΟ ΤΩΝ ΔΟΜΩΝ ΜΕΓΑΛΗΣ ΚΛΙΜΑΚΑΣ ΣΕ ΣΧΕΣΗ ΜΕ ΤΑ ΦΑΙΝΟΜΕΝΑ ΤΥΡΒΩΔΟΥΣ ΜΕΤΑΦΟΡΑΣ. ΕΞΕΤΑΖΟΝΤΑΙ ΔΥΟ ΘΕΣΕΙΣ ΤΗΣ ΠΛΑΚΑΣ: Α. Η ΟΡΙΖΟΝΤΙΑ ΚΑΙ Β. Η ΚΕΚΛΙΜΕΝΗ ΣΕ 45 ΜΟΙΡΕΣ. ΜΕΤΡΗΘΗΚΑΝ ΜΕ ΤΕΧΝΙΚΗ HOT-WIRE ΜΕΣΑ ΚΑΙ ΣΤΑΤΙΣΤΙΚΑ ΤΥΡΒΩΔΗ ΜΕΓΕΘΗ ΟΠΩΣ ΜΕΣΗ ΘΕΡΜΟΚΡΑΣΙΑ, ΤΥΡΒΩΔΕΙΣ ΕΝΤΑΣΕΙΣ, ΑΥΤΟΣΥΣΧΕΤΗΣΗ, ΦΑΣΜΑΤΑ ΙΣΧΥΟΣ ΚΛΠ. ΕΠΙΣΗΣ ΧΡΗΣΙΜΟΠΟΙΗΘΗΚΕ Η ΜΕΘΟΔΟΣ SCHLIEREN ΓΙΑ ΤΗΝ ΟΠΤΙΚΗ ΜΕΛΕΤΗ ΤΟΥ ΡΟΙΚΟΥ ΠΕΔΙΟΥ. ΣΤΗΝ ΟΡΙΖΟΝΤΙΑ ΘΕΣΗ, ΕΥΡΙΣΚΕΤΑΙ ΟΤΙ ΤΟ ΤΥΡΒΩΔΕΣ ΠΕΔΙΟ ΑΠΕΧΕΙ ΑΙΣΘΗΤΑ ΑΠΟ ΤΗΝ ΟΜΟΓΕΝΕΙΑ. ΟΙ ΑΝΕΡΧΟΜΕΝΕΣ ΜΑΖΕΣ ΘΕΡΜΟΥ ΑΕΡΑ ΞΕΚΙΝΟΥΝ ΑΠΟ ΑΣΤΑΘΕΙΕΣ ΠΟΥ ΔΗΜΙΟΥΡΓΟΥΝΤΑΙ ΜΕΣΑ ΣΤΟ ΣΤΡΩΜΑ ΑΓΩΓΗΣ. ΣΤΗΝ ΠΕΡΙΠΤΩΣΗ ΚΕΚΛΙΜΕΝΗΣ ΠΛΑΚΑΣ, ΤΟ ΡΟΙΚΟ ΠΕΔΙΟ ΕΥΡΙΣΚΕΤΑΙ ΝΑ ΕΙΝΑΙ ΣΥΝΘΕΤΟ, ΣΥΝΔΙΑΖΟΝΤΑΣ ΤΑ ΧΑΡΑΚΤΗΡΙΣΤΙΚΑ ΕΝΟΣ ΘΕΡΜΙΚΟΥ ΟΡΙΑΚΟΥ ΣΤΡΩΜΑΤΟΣ ΚΑΙ ΜΙΑΣ ΡΟΗΣ ΕΛΕΥΘΕΡΗΣ ΜΕΤΑΦΟΡΑΣ ΠΑΝΩ ΑΠΟ ΟΡΙΖΟΝΤΙΑ ΠΛΑΚΑ."],"dc:identifier":["10.12681/eadd/0545","http://hdl.handle.net/10442/hedi/0545"],"dc:language":["gre"],"dc:publisher":["Πανεπιστήμιο Πατρών","University of Patras"],"dc:subject":["FREE CONVECTION","Large scale structures","TURBULENT FREE CONVECTION","TURBULENT FREE CONVECTION TEMPERATURE FIELD","ΔΟΜΕΣ ΜΕΓΑΛΗΣ ΚΛΙΜΑΚΑΣ ΣΤΗΝ ΤΥΡΒΗ","ΤΥΡΒΩΔΗΣ ΕΛΕΥΘΕΡΗ ΜΕΤΑΦΟΡΑ ΘΕΡΜΟΤΗΤΑΣ","Engineering and Technology","Mechanical Engineering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Μηχανολόγου Μηχανικού"],"dc:title":["Η ΔΟΜΗ ΤΟΥ ΤΥΡΒΩΔΟΥΣ ΠΕΔΙΟΥ ΘΕΡΜΟΚΡΑΣΙΑΣ ΠΑΝΩ ΑΠΟ ΘΕΡΜΑΙΝΟΜΕΝΕΣ ΕΠΙΦΑΝΕΙΕΣ","THE STRUCTURE OF THE TURBULENT TEMPERATURE FIELD ABOVE HEATED PLANES"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:25:21Z"}