The aerial atomizer is the most essential component of plant protection UAV (unmanned vehicle). However, structural optimization existing atomizers lacks comprehensive consideration spray parameters and parameters, there a shortage available models, resulting in unstable effect application. In our previous work, an dual-atomization centrifugal was developed. order to obtain with good atomizatio...

Purpose Spray drying is a growing technology in the pharmaceutical industry with several enabling applications in modern drug delivery. Its understanding is still vastly empirical, mainly in what relates to the particle formation step. Consequently, the design spaces are typically defined through costly experiments and their statistical interpretation. The purpose of this study is to examine th...

A laboratory benchtop flameless catalytic infrared emitter was evaluated against all life stages of the rice weevil, Sitophilus oryzae (L.), an insect species associated with stored wheat. The emitted infrared radiation was in the 3e7 mm range. A non-contact infrared thermometer measured grain temperatures continuously during exposures of infested wheat. Insect mortality was a function of the f...

We propose a data set of bond lengths for 8 selected transition metal dimers (Ag(2), Cr(2), Cu(2), CuAg, Mo(2), Ni(2), V(2), and Zr(2)) and another data set containing their atomization energies and the atomization energy of ZrV, and we use these for testing density functional theory. The molecules chosen for the test sets were selected on the basis of the expected reliability of the data and t...

This paper presents numerical simulation results of the primary atomization of a turbulent liquid jet injected into a gaseous crossflow. Simulations are performed using the balanced force Refined Level Set Grid method. The phase interface during the initial breakup phase is tracked by a level set method on a separate refined grid. A balanced force finite volume algorithm together with an interf...

We present benchmark calculations using several long-range-corrected (LRC) density functionals, in which Hartree-Fock exchange is incorporated asymptotically using a range-separated Coulomb operator, while local exchange is attenuated using an ansatz introduced by Iikura et al. [J. Chem. Phys. 115, 3540 (2001)]. We calculate ground-state atomization energies, reaction barriers, ionization energ...

Generating aerosol droplets via the atomization of thin aqueous films with high frequency surface acoustic waves (SAWs) offers several advantages over existing nebulization methods, particularly for pulmonary drug delivery, offering droplet sizes in the 1-5-μm range ideal for effective pulmonary therapy. Nevertheless, the physics underlying SAW atomization is not well understood, especially in ...

A detailed numerical investigation of turbulent liquid jets in quiescent air is conducted, with the focus on the processes leading to liquid atomization. Spectral refinement of the interface is employed to provide an accurate description of the phase interface, even at the subcell level. The ghost fluid method is used to handle the different material properties of the phases and the surface ten...