Spectral radiation measurements were made in the range of 200 to 900 nm across a section of the plenum of an arc jet wind tunnel using a series of optical fibers. The spectra contained line radiation from Oxygen and Nitrogen atoms and molecular radiation from N2(+), N2, and NO. Abel inversion technique is used to obtain radial distribution of the spectra. The analysis yielded radial profiles of the electronic excitation, vibrational and rotational temperatures of the flow field. Spectral fitting yielded branching ratios for different vibrational and rotational bands. Relatively mild flow conditions, i.e. enthalpy and mass flow rate, were used for prolonged measurements of up to and over two hours to establish the best experimental methods of temperature determinations. Signal to noise was improved by at least an order of magnitude enabling the molecular vibrational band heads of N2(+) (first negative system), N2 (second positive system), and NO (beta, gamma, delta, and epsilon systems) to be resolved in the lower ultraviolet wavelength regions. The increased signal to noise ratio also enabled partial resolution of the rotational lines of N2(+) and N2 in certain regions of minimal overlap. Comparison of the spectra with theoretical models such as the NEQAIR2 code are presented and show potential for fitting the spectra when reliable calibration is performed for the complete wavelength range.
Spectroscopic Diagnostics and an Arc Jet Heated Air Plasma
RRP:
$97.00
Description
Spectral radiation measurements were made in the range of 200 to 900 nm across a section of the plenum of an arc jet wind tunnel using a series of optical fibers. The spectra contained line radiation from Oxygen and Nitrogen atoms and molecular radiation from N2(+), N2, and NO. Abel inversion technique is used to obtain radial distribution of the spectra. The analysis yielded radial profiles of the electronic excitation, vibrational and rotational temperatures of the flow field. Spectral fitting yielded branching ratios for different vibrational and rotational bands. Relatively mild flow conditions, i.e. enthalpy and mass flow rate, were used for prolonged measurements of up to and over two hours to establish the best experimental methods of temperature determinations. Signal to noise was improved by at least an order of magnitude enabling the molecular vibrational band heads of N2(+) (first negative system), N2 (second positive system), and NO (beta, gamma, delta, and epsilon systems) to be resolved in the lower ultraviolet wavelength regions. The increased signal to noise ratio also enabled partial resolution of the rotational lines of N2(+) and N2 in certain regions of minimal overlap. Comparison of the spectra with theoretical models such as the NEQAIR2 code are presented and show potential for fitting the spectra when reliable calibration is performed for the complete wavelength range.
This work deals with the diagnostics and measurements of properties of DC plasma jets working at atmospheric and lower pressures. Great efforts have been devoted to study the non-equilibrium efects...
Leading experts discuss the characteristics, advantages, limitations and future aspects of modern spectroscopic techniques for environmental analysis. Demonstrates how these methods can be applied to...
Although a considerable amount of information concerning the applications for arc plasmas in the materials sciences is available, it is contained in literally thousands of separate manuals, technical...
Nonequilibrium atmospheric pressure plasma jets (N-APPJs) generate plasma in open space rather than in a confined chamber and can be utilized for applications in medicine. This book provides a...
Discover your next great read at BookLoop, Australiand online bookstore offering a vast selection of titles across various genres and interests. Whether you're curious about what's trending or searching for graphic novels that captivate, thrilling crime and mystery fiction, or exhilarating action and adventure stories, our curated collections have something for every reader. Delve into imaginative fantasy worlds or explore the realms of science fiction that challenge the boundaries of reality. Fans of contemporary narratives will find compelling stories in our contemporary fiction section. Embark on epic journeys with our fantasy and science fiction titles,
Shop Trending Books and New Releases
Explore our new releases for the most recent additions in romance books, fantasy books, graphic novels, crime and mystery books, science fiction books as well as biographies, cookbooks, self help books, tarot cards, fortunetelling and much more. With titles covering current trends, booktok and bookstagram recommendations, and emerging authors, BookLoop remains your go-to local australian bookstore for buying books online across all book genres.
Shop Best Books By Collection
Stay updated with the literary world by browsing our trending books, featuring the latest bestsellers and critically acclaimed works. Explore titles from popular brands like Minecraft, Pokemon, Star Wars, Bluey, Lonely Planet, ABIA award winners, Peppa Pig, and our specialised collection of ADHD books. At BookLoop, we are committed to providing a diverse and enriching reading experience for all.
Buy Educational Books and Textbooks Online at BookLoop
Shop School Textbooks for Primary, Secondary, and Higher Education
At BookLoop, we make it easy to buy school textbooks online in Australia for every stage of learning. Our extensive
textbook collection includes curriculum-aligned primary school books,
secondary school books, and resources for TAFE courses, vocational training, and university studies.
Each title is selected for accuracy, quality, and alignment with the Australian Curriculum, supporting teachers, students, and schools across the country. Whether you’re preparing for exams, classroom learning, or distance education, BookLoop’s range of educational books ensures your students have the right materials to succeed.
Teacher Resources, Classroom Tools and Professional Learning
Empower your teaching with teacher resources and classroom support materials from BookLoop.
Our collection includes lesson planning guides, literacy and numeracy workbooks, STEM education resources, and assessment tools that help educators deliver engaging, effective learning experiences.
We also stock a wide selection of preschool and early years education books tailored to early childhood development, classroom management, and student wellbeing.
Teachers can access everything from professional development books to interactive classroom activities — all carefully curated to enhance teaching outcomes and student success.
Educational Books and Learning Resources for Every Subject
Find educational books for students across a variety of subjects including English, Mathematics, Science, History, Geography, and the Arts.
BookLoop partners with trusted Australian publishers to provide up-to-date resources that meet classroom requirements and support independent learning.
Whether you’re a school administrator sourcing bulk textbook orders, a parent preparing for the new term, or a teacher updating your classroom library, BookLoop is your one-stop online bookstore for all education and teaching materials.
Sign In
your cart
Your cart is empty
Menu
Search
PRE-SALES
If you have any questions before making a purchase chat with our online operators to get more information.
