Oxygen-iodine laser in Russian Federal Nuclear Center VNIIEF

Vyskubenko, Boris A.; Adamenkov, Anatoly A.; Bakshin, Victor V.; Buzoverya, Vladimir V.; Vdovkin, Leonid A.; Deryugin, Yuri N.; Efremov, Valentin I.; Ilyin, Sergey P.; Kalinovskiy, Vladimir V.; Kolobyanin, Yuriy V.; Коновалов, Владимир; Kudryashov, É. A.; Moiseev, Vladimir B.; Nickolaev, Victor D.

doi:10.1117/12.611193

Cited by 3 publications

(3 citation statements)

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“…Because of the complex chemistry occurring with a relatively slow mixing process, the efficient mixing of the primary flow (oxygen) and secondary flow (iodine) is the key to achieving high-efficiency, and several mixing schemes have been proposed to date [2][3][4][5]. Nevertheless, experimentally obtained chemical efficiency has been far less than the theoretical limit, and efforts to achieve a higher chemical efficiency are one of the main subjects of COIL research studies.…”

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confidence: 97%

Development of Hybrid Simulation for Supersonic Chemical Oxygen-Iodine Laser

2007

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A numerical simulation method for a supersonic chemical oxygen-iodine laser is developed. The model is a combination of a three-dimensional computational fluid dynamics code without kinetics and a detailed onedimensional, multiple-leaky-stream-tubes kinetics code. In the proposed method, the detailed flowfield characteristic is calculated by solving a full Navier-Stokes equation that does not involve chemical reactions, and the resultant temperature, velocity, and mixing characteristics are input to the kinetics code as its boundary conditions. A "nonuniform coefficient" is introduced to transform the fluid-dynamic mixing to the diffusive mixing term of the kinetics code. As a result, precise predictions of the gain distribution and laser output are given with a reasonable computational cost. The developed model is applied to the X-wing-type supersonic mixing chemical oxygen-iodine laser, which we have developed, and the calculated gain and output power are compared with the experimental results. The excellent agreements of calculated and experimental results show the validity of the developed method. Nomenclature C 2 g = rate constant of the gth second order reaction C 3 h = rate constant of the hth third order reaction D a = artificial diffusion coefficient k = fitting parameter of the artificial diffusion constant M i = number density of the ith species n = number of primary flow layers and secondary flow layers n p = photon density P = optical power T = temperature of the active medium v = gas velocity x = coordinate lateral to the main flow (parallel to the optical axis) y = vertical coordinate z = coordinate to the main-flow direction = nonuniform coefficient I = iodine molar fraction

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confidence: 97%

Development of Hybrid Simulation for Supersonic Chemical Oxygen-Iodine Laser

2007

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“…A subsonic system in the Institute of Physics, Prague, Czech Republic, attained 50-100 W in a continuous regime [91Sch] and was also operated in a repetitive (1.3-4 kHz, 250 W peak power) magnetically switched regime [94Sch], now a supersonic upgrade renders 0.5 kW cw power [04Spa]. An experimental system at the Lebedev Institute branch, Samara, Russia, had originally 170 W, now it reaches 770 W of cw power [96Nik,05Nik], elsewhere in Russia, the Russian Federal Nuclear Centre, VNIIEF Arzamas 16 -Sarov, Russia, operate a chemical iodine laser system at 3.4 kW [05Vys] and a large cw system of 13.5 kW was recently reported by a joint team of Voenmekh Baltic State Technical University and Laser Systems Ltd. at St. Petersburg [05Bor]. At the Korea Atomic Energy Research Institute, Taejon, Korea, a system of 2.2 kW is in operation [00Kwo], another system in India, Delhi, gives 5 kW [03Tya].…”

Section: Laser Transition Cross-section [Ref P 351mentioning

confidence: 99%

“…[96Yur] is citing 4 types: disk (wetted wall wading disks), aerosol, bubbler or sparger and jet. Rotating the jets leads to an improved type called the twister SOG [05Vys] and the droplet generator can also be regarded as a mutation of the jet SOG. The yield of the singlet oxygen usually lies between 40 and 80 % at a pressure of fractions to tens of torr.…”

Section: Generators Of the Excited Oxygen (Sog)mentioning

confidence: 99%